CN115848067B - Axle wheel end sealing structure of commercial vehicle - Google Patents
Axle wheel end sealing structure of commercial vehicle Download PDFInfo
- Publication number
- CN115848067B CN115848067B CN202211646271.5A CN202211646271A CN115848067B CN 115848067 B CN115848067 B CN 115848067B CN 202211646271 A CN202211646271 A CN 202211646271A CN 115848067 B CN115848067 B CN 115848067B
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- framework
- ring
- sealing
- abs
- mounting hole
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- 238000007789 sealing Methods 0.000 title claims abstract description 76
- 238000005452 bending Methods 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 229920003051 synthetic elastomer Polymers 0.000 claims description 3
- 239000005061 synthetic rubber Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000009545 invasion Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Regulating Braking Force (AREA)
Abstract
The utility model provides a commercial car axle wheel end seal structure, this seal structure can effectively prevent external large granule grit, dust and muddy water invasion axle wheel end, can effectively improve the life of axle, can protect the ABS ring gear, improves the reliability of vehicle wheel speed signal acquisition, has promoted vehicle safety in traveling. The problem of current axle wheel end sealing performance weak, ABS ring gear and ABS sensor wearing and tearing has been solved, has promoted the reliability and the life of axle, is applicable to the assembly of long-life axle and abominable operating mode vehicle axle wheel end and uses.
Description
Technical Field
The invention relates to the field of manufacturing of commercial vehicles, in particular to a sealing structure for an axle wheel end of a commercial vehicle.
Background
The axle sealing structure is used as an important structural component of the axle transmission part, the service life of the axle is directly influenced by the performance of the axle, and the long-service-life maintenance-free structure is a mainstream configuration performance requirement of a future commercial vehicle.
Because of the environmental protection requirement, when a commercial vehicle is transported to and from a construction site, a water inlet groove is required to be washed, sediment and the like in the water groove are deposited on a wheel end sealing structure, so that the sealing assembly is not maintained in time, the abrasion failure of the sealing assembly is caused, the oil leakage of the wheel end of an axle is caused, the wheel end is ablated and locked when serious, and the vehicle cannot run; in addition, the dust of the transportation vehicles in the mining area is more, and the problem of premature wear of the wheel end sealing structure exists.
The current commercial vehicle automatic driving and intelligent auxiliary driving need to collect an ABS wheel speed signal at an axle wheel end, and an ABS gear ring can lead to abrasion of a sensor and the gear ring after being polluted, so that the signal loss phenomenon occurs when a vehicle runs, the collection of the wheel speed signal of the vehicle is influenced, and the system control and the running safety of the vehicle are influenced.
Therefore, based on the above description, it is necessary to design a sealing structure for the axle wheel end of a commercial vehicle, so as to solve the defects of the axle wheel end in the prior art.
Disclosure of Invention
The invention provides the commercial vehicle axle wheel end sealing structure which effectively prolongs the service life of the axle and improves the reliability of vehicle wheel speed signal acquisition.
The technical scheme adopted for overcoming the technical problems is as follows:
a commercial vehicle axle wheel end seal structure comprising: install the wheel hub on axle spindle nose and install the ABS sensor in the mounting hole I of axle spindle nose through the wheel hub bearing rotation, still include:
the ABS gear ring is sleeved on a mounting table II of the hub, the outer circumferential surface of the ABS gear ring is a sealing matching surface, and the probe end of the ABS sensor is opposite to the tooth ring end of the ABS gear ring;
The inner sealing ring is arranged in the inner hole of the hub, the inner sealing ring is positioned at the inner side end of the hub, the outer side end surface of the inner sealing ring is in airtight contact with the inner hole of the hub, and the mounting hole III of the inner sealing ring is in airtight contact with the outer end surface of the inner ring of the hub bearing;
the outer sealing ring is fixed on the axle head and is in airtight connection with the sealing matching surface.
In order to facilitate positioning, a shoulder II is arranged in an inner hole of the ABS gear ring, and the end face of the hub is contacted with the end face of the shoulder II.
In order to further improve the tightness, a blocking shoulder I is arranged on the sealing matching surface of the ABS gear ring in a surrounding mode, and an outer sealing ring is located at the inner side end of the blocking shoulder I.
Further, the outer sealing ring comprises a circular framework I, the outer side end of the framework I is opened, the inner side end of the framework I sequentially passes through a first bending angle, a second bending angle, a third bending angle and a fourth bending angle to form a boss which protrudes towards the inner side end and is in a circular ring structure, a plurality of bolt mounting holes are formed in the boss, a mounting hole II is formed in the inner side end of the framework I, the boss is the same as the mounting hole II in axis, the framework I is inserted on a mounting table I of an axle spindle head through the mounting hole II, a hexagon head bolt passes through the bolt mounting hole and then is screwed in a flange surface of the axle spindle head, an ABS sensor mounting hole matched with the outer diameter of an ABS sensor is formed in the boss, the ABS sensor is inserted into an ABS sensor mounting hole, the framework II is of a circular ring structure and is inserted into an inner hole of the framework I, the outer side end of the framework II is bent towards the circle center direction to form a vertical section, the framework III is inserted into the inner hole of the framework II and is of a circular ring structure, the outer side end of the framework III is bent towards the circle center direction to form a vertical section, two elastomer lips are arranged at the vertical section of the framework III, the elastomer lips incline towards the ABS sensor mounting hole side, the lower end of the elastomer lips are in contact with a sealing matching surface, a felt is arranged between the vertical section of the framework II and the vertical section of the framework III, and the inner hole of the felt is in contact with the sealing matching surface.
Preferably, the angle between the end face of the gear ring at the inner side end of the ABS gear ring and the sealing matching surface is 15-30 degrees.
Preferably, the elastomer lip is made of synthetic rubber or hydrogenated nitrile rubber or fluororubber material.
Preferably, the gap between the head of the hexagon head bolt and the inner end face of the inner sealing ring is 0.5-1.5mm.
Preferably, the clearance between the outer end face of the outer sealing ring and the retaining shoulder I is 0.5-2.5mm.
Preferably, the clearance between the mounting hole II and the sealing matching surface is 0.5-1.5mm.
The beneficial effects of the invention are as follows: the sealing structure can effectively prevent external large-particle sand, dust and muddy water from invading the axle wheel end, can effectively prolong the service life of the axle, can protect the ABS gear ring, improves the reliability of the wheel speed signal acquisition of the vehicle, and improves the running safety of the vehicle. The problem of current axle wheel end sealing performance weak, ABS ring gear and ABS sensor wearing and tearing has been solved, has promoted the reliability and the life of axle, is applicable to the assembly of long-life axle and abominable operating mode vehicle axle wheel end and uses.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic cross-sectional view of an outer seal ring portion of the present invention;
FIG. 3 is a schematic perspective view of the skeleton I of the present invention;
FIG. 4 is a schematic view of the structure of an ABS ring gear of the present invention;
In the figure, the axle head 2 is shown as ABS gear ring 3, hub 4, outer seal ring 5, inner seal ring 6, hex head bolt 7, hub bearing 8, ABS sensor 11, flange face 12, mounting hole I13, mounting table I21, shoulder I22, shoulder II 23, gear ring end face 24, guide angle 25, seal mating face 31, mounting table II 41, skeleton I42, skeleton II 43, skeleton III 44, felt 411, ABS sensor mounting hole 412, mounting hole II 413, bolt mounting hole 414, first bend angle 415, second bend angle 416, third bend angle 417, fourth bend angle 431, elastomeric lip 521, and mounting hole III.
Detailed Description
The invention is further described with reference to fig. 1 to 4.
A commercial vehicle axle wheel end seal structure comprising: the ABS sensor 8 mounted in the mounting hole i 12 of the axle stub 1 and the hub 3 mounted on the axle stub 1 is turned by the hub bearing 7, and further comprises: the ABS gear ring 2 is sleeved on a mounting table II 31 of the hub 3, the outer circumferential surface of the ABS gear ring 2 is a sealing matching surface 25, and the probe end of the ABS sensor 8 is opposite to the tooth ring end of the ABS gear ring 2; the inner sealing ring 5 is arranged in the inner hole of the hub 3, the inner sealing ring 5 is positioned at the inner side end of the hub 3, the outer side end surface of the inner sealing ring is in airtight contact with the inner hole of the hub 3, and the mounting hole III 521 of the inner sealing ring is in airtight contact with the outer end surface of the inner ring of the hub bearing 7; the outer sealing ring 4 is fixed on the axle head 1 and is in airtight connection with the sealing matching surface 25. Through the arrangement of the inner sealing ring 5 and the outer sealing ring 4, the invention designs a novel sealing structure for the axle wheel end of the commercial vehicle, and the sealing structure can effectively prevent external large-particle sand stone, dust and muddy water from invading the axle wheel end, can effectively prolong the service life of the axle, can protect the ABS gear ring 2, improve the reliability of the acquisition of wheel speed signals of the vehicle and improve the running safety of the vehicle. The problem of current axle wheel end sealing performance weak, ABS ring gear 2 and ABS sensor 8 wearing and tearing is solved, the reliability and the life of axle have been promoted, are applicable to the assembly of long-life axle and abominable operating mode vehicle axle wheel end and use.
In one embodiment of the invention, a shoulder II 22 is arranged in the inner hole of the ABS gear ring 2, and the end face of the hub 3 is contacted with the end face of the shoulder II 22. The retaining shoulder II 22 is used for installing and positioning the ABS gear ring 2 and the hub 3, and improves the assembly efficiency. The sealing matching surface 25 of the ABS gear ring 2 is circumferentially provided with a shoulder I21, and the outer sealing ring 4 is positioned at the inner side end of the shoulder I21. The retaining shoulder I21 is used for being matched with the end face of the outer sealing ring 4 to prevent external particles from invading the inside of the axle wheel end.
Further, the outer seal ring 4 comprises a circular framework I41, the outer side end of the framework I41 is opened, the inner side end of the framework I41 sequentially passes through a first bending angle 414, a second bending angle 415, a third bending angle 416 and a fourth bending angle 417 to form a boss protruding towards the inner side end and in a circular ring structure, a plurality of bolt mounting holes 413 are formed in the boss, a mounting hole II 412 is formed in the inner side end of the framework I41, the boss is the same as the mounting hole II 412, the framework I41 is inserted into a mounting table I13 of the axle spindle head 1 through the mounting hole II 412, a hexagon head bolt 6 passes through the bolt mounting hole 413 and then is screwed into a flange surface 11 of the axle spindle head 1, an ABS sensor mounting hole 411 matched with the outer diameter of the ABS sensor 8 is formed in the boss, the ABS sensor 8 is inserted into the ABS sensor mounting hole 411, the framework II 42 is of a circular ring structure, the framework II is inserted into an inner hole of the framework I41, the outer side end of the framework II 42 is bent towards the circle center direction to form a vertical section, the framework III 43 is inserted into the inner hole of the framework II 42, the outer side end of the framework III 43 is bent towards the circle center direction to form a vertical section, two elastic body lips 431 are arranged at the vertical section of the framework III 43, the elastic body lips 431 incline towards the ABS sensor mounting hole 411 side, the lower end of the elastic body lips 431 are in contact with the sealing matching surface 25, a felt 44 is arranged between the vertical section of the framework II 42 and the vertical section of the framework III, and the felt 44 is of a circular ring structure, and the inner hole of the felt 44 is in contact with the sealing matching surface 25. The felt 44 is arranged between the framework II 42 and the framework III 43 in the outer sealing ring 4, and the felt 44 forms a third seal of the whole sealing structure, so that fine dust particles outside can be filtered to invade the sealing system. Two elastomer lips 431 are arranged at the vertical section of the framework III 43, and the two elastomer lips 431 are sealed for the fourth time, so that external muddy water can be prevented from entering the axle wheel end. Grease can be filled between the two elastomer lips 431, so that lip lubrication is realized, friction is reduced, and the service life of the sealing ring can be prolonged. The elastic body lip 431 is inclined toward the ABS sensor mounting hole 411 side in order to facilitate assembly guiding and avoid assembly damage. Preferably, the number of bolt mounting holes 413 is 2-6. The diameter of mounting hole II 412 is smaller than the diameter of mounting hole III 521. The whole outer sealing ring 4 is designed to protect the inner sealing ring 5 at the axle wheel end, so that the sealing performance of the wheel end is further enhanced, the sealing structure of the outer sealing ring 4 simultaneously protects the ABS gear ring 2, external scrap iron and silt are prevented from polluting the ABS gear ring 2, and corrosion and abrasion of the ABS gear ring 2 are effectively avoided.
In one embodiment of the invention, the angle of orientation 24 of the ring end face 23 of the inboard end of the ABS ring 2 with the seal mating surface 25 is 15-30 degrees. The guiding angle 24 is arranged, so that the ABS gear ring 2 can be conveniently inserted into the outer sealing ring 4, and the guiding angle 24 can play a role in guiding.
Preferably, the elastomeric lip 431 is made of a synthetic rubber or hydrogenated nitrile rubber or fluororubber material.
In one embodiment of the invention, the clearance between the head of the hexagon head bolt 6 and the inner end face of the inner seal ring 5 is 0.5-1.5mm. The clearance of 0.5-1.5mm can prevent the damage of other peripheral parts caused by loosening and falling of the hexagon head bolt 6. The clearance between the outer end face of the outer sealing ring 4 and the retaining shoulder I21 is 0.5-2.5mm. A gap of 0.5-2.5mm is sufficient to prevent intrusion of large sand particles from the outside into the wheel end sealing system. The clearance between the mounting hole II 412 and the seal mating surface 25 is 0.5-1.5mm. The invasion of external dust particles and the like can be further prevented by setting the diameter to be 0.5-1.5mm.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A commercial vehicle axle wheel end seal structure comprising: the ABS sensor (8) installed in the installation hole I (12) of the axle spindle head (1) and the hub (3) installed on the axle spindle head (1) are rotated through the hub bearing (7), and is characterized by further comprising:
The ABS gear ring (2), the ABS gear ring (2) is sleeved on a mounting table II (31) of the hub (3), the outer circumferential surface of the ABS gear ring (2) is a sealing matching surface (25), and the probe end of the ABS sensor (8) is right opposite to the toothed ring end of the ABS gear ring (2);
The inner sealing ring (5) is arranged in the inner hole of the hub (3), the inner sealing ring (5) is positioned at the inner side end of the hub (3), the outer side end surface of the inner sealing ring is in airtight contact with the inner hole of the hub (3), and the mounting hole III (521) of the inner sealing ring is in airtight contact with the outer end surface of the inner ring of the hub bearing (7);
the outer sealing ring (4) is fixed on the axle head (1) and is in airtight connection with the sealing matching surface (25).
2. The commercial vehicle axle wheel end seal of claim 1, wherein: a shoulder II (22) is arranged in an inner hole of the ABS gear ring (2), and the end face of the hub (3) is contacted with the end face of the shoulder II (22).
3. The commercial vehicle axle wheel end seal of claim 1, wherein: a sealing matching surface (25) of the ABS gear ring (2) is provided with a blocking shoulder I (21) in a surrounding mode, and an outer sealing ring (4) is located at the inner side end of the blocking shoulder I (21).
4. The commercial vehicle axle wheel end seal of claim 1, wherein: the outer sealing ring (4) comprises a circular framework I (41), the outer side end of the framework I (41) is provided with an opening, the inner side end of the framework I (41) sequentially passes through a first bending angle (414), a second bending angle (415), a third bending angle (416) and a fourth bending angle (417) to form a boss protruding towards the inner side end and in a circular ring structure, a plurality of bolt mounting holes (413) are formed in the boss, the inner side end of the framework I (41) is provided with a mounting hole II (412), the boss is coaxial with the mounting hole II (412), the framework I (41) is inserted on a mounting table I (13) of the axle head (1) through the mounting hole II (412), a hexagon head bolt (6) passes through the bolt mounting hole (413) and then is screwed in a flange surface (11) of the axle head (1), the boss is provided with an ABS sensor mounting hole (411) matched with the outer diameter of an ABS sensor (8), the ABS sensor (8) is inserted into the ABS sensor mounting hole (411), a framework II (42) is of a circular ring structure and is inserted into an inner hole of a framework I (41), the outer side end of the framework II (42) is bent towards the circle center to form a vertical section and is of a circular ring structure, a framework III (43) is inserted into the inner hole of the framework II (42), the outer side end of the framework III (43) is bent towards the circle center to form a vertical section, two elastomer lips (431) are arranged at the vertical section of the framework III (43), the elastic body lip (431) inclines towards the ABS sensor mounting hole (411), the lower end of the elastic body lip (431) is in contact with the sealing matching surface (25), a felt (44) is arranged between the vertical section of the framework II (42) and the vertical section of the framework III (43), the felt (44) is of a circular ring structure, and an inner hole of the felt is in contact with the sealing matching surface (25).
5. The commercial vehicle axle wheel end seal of claim 1, wherein: the angle between the end face (23) of the gear ring at the inner side of the ABS gear ring (2) and the guide angle (24) of the sealing matching surface (25) is 15-30 degrees.
6. The commercial vehicle axle wheel end seal of claim 4, wherein: the elastomer lip (431) is made of synthetic rubber or hydrogenated nitrile rubber or fluororubber material.
7. The commercial vehicle axle wheel end seal of claim 4, wherein: the gap between the head of the hexagon head bolt (6) and the inner side end face of the inner sealing ring (5) is 0.5-1.5mm.
8. The commercial vehicle axle wheel end sealing arrangement of claim 3, wherein: the clearance between the outer end surface of the outer sealing ring (4) and the retaining shoulder I (21) is 0.5-2.5mm.
9. The commercial vehicle axle wheel end sealing arrangement of claim 3, wherein: the clearance between the mounting hole II (412) and the sealing matching surface (25) is 0.5-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211646271.5A CN115848067B (en) | 2022-12-21 | 2022-12-21 | Axle wheel end sealing structure of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211646271.5A CN115848067B (en) | 2022-12-21 | 2022-12-21 | Axle wheel end sealing structure of commercial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115848067A CN115848067A (en) | 2023-03-28 |
| CN115848067B true CN115848067B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211646271.5A Active CN115848067B (en) | 2022-12-21 | 2022-12-21 | Axle wheel end sealing structure of commercial vehicle |
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| CN (1) | CN115848067B (en) |
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