CN112158156A - Cargo vehicle wheel side gear oil lubrication structure and axle - Google Patents
Cargo vehicle wheel side gear oil lubrication structure and axle Download PDFInfo
- Publication number
- CN112158156A CN112158156A CN202010880443.XA CN202010880443A CN112158156A CN 112158156 A CN112158156 A CN 112158156A CN 202010880443 A CN202010880443 A CN 202010880443A CN 112158156 A CN112158156 A CN 112158156A
- Authority
- CN
- China
- Prior art keywords
- axle housing
- wheel hub
- hub
- oil
- lubricating
- 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
- 239000012208 gear oil Substances 0.000 title claims description 19
- 238000005461 lubrication Methods 0.000 title claims description 16
- 239000003921 oil Substances 0.000 claims abstract description 70
- 230000001050 lubricating effect Effects 0.000 claims abstract description 29
- 239000010687 lubricating oil Substances 0.000 claims abstract description 26
- 239000004519 grease Substances 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 description 11
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R17/00—Arrangements or adaptations of lubricating systems or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0015—Hubs for driven wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/02—Hubs adapted to be rotatably arranged on axle
- B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/50—Improvement of
- B60B2900/561—Lubrication
Abstract
The invention relates to an oil lubricating structure for a wheel side gear of a truck, which comprises a wheel hub, an axle housing and a half shaft, wherein a gap between the axle housing and the half shaft forms a half shaft lubricating oil channel, and an inner wheel hub oil seal is arranged between the axle housing and the wheel hub. The wheel hub of the invention cancels the oil seal between the outer end part of the half shaft and the axle housing, and simultaneously cancels the wheel hub outer oil seal of the axle housing and the wheel hub, a gap between the axle housing and the half shaft forms a half shaft lubricating oil channel, originally only used for lubricating oil in the gap between the axle housing and the half shaft, can enter a lubricating cavity between the axle housing and the wheel hub through the gap between the axle housing and the half shaft and the gap between the outer bearing between the axle housing and the wheel hub, lubricate the outer bearing and the inner bearing, and replace the original lubricating grease.
Description
Technical Field
The invention relates to a truck wheel rim, in particular to a truck wheel rim gear oil lubricating structure.
Background
The traditional lubricating mode of the wheel edge of the truck is grease lubrication. As shown in fig. 1, the grease lubrication sealing assembly at the wheel rim of an automobile in the prior art comprises a wheel hub 1, an axle housing 2 and a half shaft 3, a gap between the axle housing 2 and the half shaft 3 forms a half shaft lubricating oil channel 4 for lubricating the half shaft 3, an oil seal 5 is arranged between the outer end part of the half shaft 3 and the axle housing 2, lubricating oil is prevented from leaking out of the lubricating oil channel, an outer wheel hub oil seal 6 and an inner wheel hub oil seal 7 are arranged between the axle housing 2 and the wheel hub 1, a bearing 8 is arranged between the axle housing 2 and the wheel hub 1, and lubricating grease is added into a space formed between the outer wheel hub oil seal 6 and the inner wheel hub oil seal 7.
The Chinese patent publication No. CN 211032049U discloses a deep groove ball bearing limiting mechanism, and the lubrication of a hub assembly of the deep groove ball bearing limiting mechanism also adopts the scheme.
Because the grease is easy to age, and the grease must be periodically maintained and replaced by new grease, during maintenance, the half shaft bolt needs to be dismounted, the half shaft is drawn out, the outer bearing is dismounted, the old lubricating grease is dug out, and the new lubricating grease is added. Such a solution leads to increased maintenance costs.
Disclosure of Invention
The invention aims to provide an oil lubricating structure for a wheel side gear of a truck, which is convenient to maintain and saves the maintenance cost.
In order to solve the technical problem, the wheel side gear oil lubricating structure of the truck comprises a wheel hub, an axle housing and a half shaft, wherein a gap between the axle housing and the half shaft forms a half shaft lubricating oil channel, and an in-wheel oil seal is arranged between the axle housing and the wheel hub.
The wheel hub of the invention cancels the oil seal between the outer end part of the half shaft and the axle housing, and simultaneously cancels the wheel hub outer oil seal of the axle housing and the wheel hub, a gap between the axle housing and the half shaft forms a half shaft lubricating oil channel, originally only used for lubricating oil in the gap between the axle housing and the half shaft, can enter a lubricating cavity between the axle housing and the wheel hub through the gap between the axle housing and the half shaft and the gap between the outer bearing between the axle housing and the wheel hub, lubricate the outer bearing and the inner bearing, and replace the original lubricating grease.
Furthermore, a lubricating cavity is arranged between the wheel hub and the axle housing.
Furthermore, an oil discharge port is arranged on the hub at the position of the lubricating cavity. When lubricating oil needs to be replaced, the oil discharge port is opened, and old lubricating oil can be discharged.
The invention also relates to a truck axle comprising the truck wheel side gear oil lubricating structure.
After the structure is adopted, the wheel-side bearing lubricating mode is gear oil lubrication, namely, the main reducer and the inner reducer are directly adopted for same gear oil lubrication, so that the maintenance-free operation in the whole life can be realized, the gear oil at the wheel side is replaced when the main reducer gear oil is replaced, and the maintenance cost and the transportation efficiency in the use process can be reduced. After the wheel edge of the traditional truck is changed from traditional grease lubrication to gear lubrication, the semi-axle oil seal, the hub outer oil seal and the hub inner oil seal outer ring of the wheel edge of the traditional truck are eliminated, the cost is saved, and all functions of the traditional structure are realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a prior art truck wheel rim structure.
Fig. 2 is a schematic view of the wheel rim structure of the cargo truck of the present invention.
FIG. 3 is a schematic view of the hub outer bearing and hub inner bearing configuration.
Fig. 4 is a schematic structural view of a truck wheel-side gear oil lubrication structure.
Fig. 5 is a schematic view of the structure of a prior art oil seal.
Fig. 6 is a schematic structural view of the bearing oil seal structure of the present invention.
Detailed Description
As shown in fig. 2 and fig. 3, the truck wheel rim structure of the invention comprises a wheel hub 1, an axle housing 2 and a half axle 3, wherein a wheel hub outer bearing 8 and a wheel hub inner bearing 10 are arranged between the wheel hub 1 and the axle housing 2, the wheel hub outer bearing 8 comprises a wheel hub outer bearing inner ring 81 matched with the axle housing 2 and a wheel hub outer bearing outer ring 82 matched with the wheel hub, the wheel hub inner bearing 10 comprises a wheel hub inner bearing inner ring 101 matched with the axle housing 2 and a wheel hub inner bearing outer ring 102 matched with the wheel hub, the wheel hub inner bearing inner ring 101 is provided with an outer first extension portion 1011, the wheel hub outer bearing inner ring 81 is provided with an inner second extension portion 811, and the first extension portion 1011 is in contact with the second extension portion.
The hub inner bearing inner ring 81 and the hub outer bearing inner ring 101 are provided with extending portions facing each other, and the second extending portion 1011 abuts against the first extending portion 801, so that the relative positions of the hub outer bearing 8 and the hub inner bearing 10 are fixed. When hub outer bearing 8 is remounted for maintenance of hub 1, extension 811 of hub outer bearing 8 and extension 1011 of hub inner bearing need only be realigned.
The outer surface where the first extension 1011 and the second extension 811 meet is provided with an inner and outer bearing seal ring 12. First extension and second extension contact department can leave gap 13, sets up the mounting groove in gap 13 department, sets up inside and outside bearing seal ring 12 in the mounting groove, can prevent that lubricating oil from getting into between wheel hub inner bearing 10 and the axle housing 2 through gap 13 between first extension 1011 and the second extension 811, and then get into the part in wheel hub inner bearing 10 along the space 14 between wheel hub inner bearing 10 and the axle housing 2.
The oil sump 14 is provided on the inner surface where the first extension 1011 and the second extension 811 contact each other. A small amount of lubricating oil entering between the in-hub bearing 10 and the axle housing 2 through the gap 13 between the first extended portion 1011 and the second extended portion 811 can be collected in the oil sump 14 without further penetration into the interior of the hub.
As shown in fig. 2 and 6, the oil seal structure for the axle bearing of the truck comprises an inner hub bearing 10 and an inner hub oil seal 7, wherein the inner hub bearing 10 comprises an inner hub bearing inner ring 101 and an outer hub bearing inner ring, the inner hub bearing inner ring 101 is fixedly mounted on an axle housing, a rear extension part 102 is arranged at the inner end of the inner hub bearing inner ring 101 and serves as an oil seal seat, and the inner hub oil seal 7 is mounted on the oil seal seat. The oil seal seat can restrain the hub inner oil seal 7 in the axial direction, so that the sealing of the hub inner oil seal 7 is tighter. The rear extension part is arranged as an oil seal seat and is used as a part of a combined oil seal, so that an inner ring of the combined oil seal is omitted, and the installation is simpler and more convenient.
The trailing portion includes a body parallel to the axial direction, perpendicular to the axial disc 1022. The disc part 1022 perpendicular to the axial direction can abut against the inner oil seal 7 of the hub to prevent the inner oil seal 7 from moving in the radial direction, and can also be matched with the inner oil seal 7 of the hub to ensure better sealing effect and increase one way of blocking a labyrinth flow passage of oil leakage.
The in-wheel oil seal 7 comprises a sleeve 71 parallel to a cylindrical surface in the axial direction and a sleeve disc 72 perpendicular to the axial direction, a lubricating oil sealing structure 23 is arranged on the sleeve disc 72, and the sealing structure 23 comprises a sealing lip 24 in close contact fit with the body and a sealing lip 24 in close contact fit with a disc part 1022.
A flange 1023 is provided on the disk 1022 and a projection 17 is provided on the sleeve disk 72 corresponding to the flange 1023. A sealing lip 24 is provided on the sleeve disk 72 at a position corresponding to the flange 1023. The in-hub oil seal 7 further includes a second sleeve 73 and a second sleeve disk 74 mounted in the sleeve 71, the second sleeve disk 74 being provided with the lubricating oil seal structure 23.
The matching of the inner oil seal and the inner bearing can not only support the inner oil seal 7 of the wheel hub to prevent the inner oil seal from moving in the radial direction, but also can be matched with the inner oil seal 7 of the wheel hub to ensure that the sealing effect is better, so that a labyrinth flow passage for oil leakage is blocked. The labyrinth flow passage of the existing oil seal and the inner bearing is only arranged along the axial direction, and the labyrinth flow passage of the invention not only has the arrangement along the axial direction, but also is provided with a flange 1023 and a bulge 17 immediately behind the axial labyrinth flow passage to form a radial labyrinth flow passage which is perpendicular to the axial labyrinth flow passage. Since the inner oil seal is provided with a semi-annular structure at the innermost end, that is, the inner bearing ring 101, the disk part 1022 and the flange 1023 of the hub form a semi-annular structure, oil leakage hardly breaks through such a structure and enters the interior of the hub.
The inner side of the rear extending part 102 is provided with a conical surface 16 corresponding to the oil seal seat, a circle of space is formed between the conical surface 16 and the axle housing 2, and an O-shaped ring is arranged in the space. The O-shaped ring can prevent lubricating oil leaked from the gap 13 and the oil collecting groove 14 from entering the inner part of the hub. And an outer hub oil seal 6 and an inner hub oil seal 7 are arranged between the hub and the axle housing, and the inner hub oil seal 7 is arranged on the inner hub oil seal seat. The multi-layer sealing structure can ensure that lubricating oil cannot leak, and the oil sealing structure can also enable the oil seal 7 in the hub to be installed on the oil seal seat.
The truck also comprises a truck wheel-side gear oil lubricating structure, as shown in figure 4, the truck wheel-side gear oil lubricating structure comprises a wheel hub 1, an axle housing 2 and a half shaft 3, a gap between the axle housing 2 and the half shaft 3 forms a half shaft lubricating oil channel 4, and an in-wheel oil seal is arranged between the axle housing and the wheel hub.
The wheel hub of the invention cancels the oil seal 5 between the outer end part of the half shaft 3 and the axle housing 2, and simultaneously cancels the wheel hub outer oil seal between the axle housing 2 and the wheel hub 1, a half shaft lubricating oil channel 4 is formed in the gap between the axle housing 2 and the half shaft 3, an oil channel gap 41 is left between the front end of the half shaft 3 and the front end of the axle housing, and the oil channel is used as a part of the half shaft lubricating oil channel 4, and can be used for enabling lubricating oil to enter the gap between the axle housing 2 and the wheel hub 1 from the gap between the axle.
Originally, only be used for lubricating oil in the gap between axle housing 2 and semi-axis 3, can pass through the gap between axle housing 2 and the semi-axis 3 to through the gap between the outer bearing 8 between axle housing 2 and the wheel hub 1, come lubrication chamber 9 between axle housing 2 and the wheel hub 1, lubricate outer bearing 8 and inner bearing 10, replaced original lubricating grease.
And a lubricating cavity 9 is arranged between the hub 1 and the axle housing 2. An oil outlet (not shown) is arranged on the hub at the position of the lubricating cavity 9. When lubricating oil needs to be replaced, the oil discharge port is opened, and old lubricating oil can be discharged.
After the structure is adopted, the wheel-side bearing lubricating mode is gear oil lubrication, namely, the main reducer and the inner reducer are directly adopted for same gear oil lubrication, so that the maintenance-free operation in the whole life can be realized, the gear oil at the wheel side is replaced when the main reducer gear oil is replaced, and the maintenance cost and the transportation efficiency in the use process can be reduced. After the wheel edge of the traditional truck is changed from traditional grease lubrication to gear lubrication, the semi-axle oil seal, the hub outer oil seal and the hub inner oil seal outer ring of the wheel edge of the traditional truck are eliminated, the cost is saved, and all functions of the traditional structure are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make changes or modifications to the equivalent embodiments using the above disclosure. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the present invention, unless they depart from the technical spirit of the present invention.
Claims (6)
1. The utility model provides a cargo vehicle wheel limit gear oil lubrication structure, includes wheel hub, axle housing and semi-axis, its characterized in that: a gap between the axle housing and the half shaft forms a half shaft lubricating oil channel, and an inner wheel hub oil seal is arranged between the axle housing and the wheel hub.
2. The cargo vehicle wheel-side gear oil lubricating structure according to claim 1, characterized in that: and a lubricating cavity is arranged between the hub and the axle housing.
3. The cargo vehicle wheel-side gear oil lubricating structure according to claim 2, characterized in that: and an oil discharge port is arranged on the hub at the position of the lubricating cavity.
4. The utility model provides a cargo vehicle axle which characterized in that: including wheel hub, axle housing and semi-axis, be equipped with wheel hub outer bearing and wheel hub inner bearing between wheel hub and the axle housing, the gap between axle housing and the semi-axis forms semi-axis lubricating oil passageway, set up the oil blanket in the wheel hub between axle housing and the wheel hub.
5. The truck axle of claim 4 wherein: and a lubricating cavity is arranged between the hub and the axle housing.
6. The truck axle of claim 5 wherein: and an oil discharge port is arranged on the hub at the position of the lubricating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880443.XA CN112158156A (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle wheel side gear oil lubrication structure and axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880443.XA CN112158156A (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle wheel side gear oil lubrication structure and axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112158156A true CN112158156A (en) | 2021-01-01 |
Family
ID=73860257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010880443.XA Pending CN112158156A (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle wheel side gear oil lubrication structure and axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112158156A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201703197U (en) * | 2010-04-23 | 2011-01-12 | 郑州精益达汽车零部件有限公司 | Driving axle for medium-sized passenger car |
| DE102013224065A1 (en) * | 2013-11-26 | 2015-05-28 | Zf Friedrichshafen Ag | Portal housing arrangement |
| CN107531092A (en) * | 2015-04-29 | 2018-01-02 | Zf腓特烈斯哈芬股份公司 | Hub bracket |
| WO2018074543A1 (en) * | 2016-10-20 | 2018-04-26 | Ntn株式会社 | Bearing device for wheels |
| CN107989911A (en) * | 2017-12-05 | 2018-05-04 | 安徽福马车桥有限公司 | A kind of automobile and its hub-bearing unit |
| CN110561970A (en) * | 2019-09-17 | 2019-12-13 | 泰州神舟传动科技有限公司 | Waterproof wheel limit system of engineering mixer truck |
| CN110588338A (en) * | 2018-06-12 | 2019-12-20 | 株式会社捷太格特 | Driving force distribution device |
-
2020
- 2020-08-27 CN CN202010880443.XA patent/CN112158156A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201703197U (en) * | 2010-04-23 | 2011-01-12 | 郑州精益达汽车零部件有限公司 | Driving axle for medium-sized passenger car |
| DE102013224065A1 (en) * | 2013-11-26 | 2015-05-28 | Zf Friedrichshafen Ag | Portal housing arrangement |
| CN107531092A (en) * | 2015-04-29 | 2018-01-02 | Zf腓特烈斯哈芬股份公司 | Hub bracket |
| WO2018074543A1 (en) * | 2016-10-20 | 2018-04-26 | Ntn株式会社 | Bearing device for wheels |
| CN107989911A (en) * | 2017-12-05 | 2018-05-04 | 安徽福马车桥有限公司 | A kind of automobile and its hub-bearing unit |
| CN110588338A (en) * | 2018-06-12 | 2019-12-20 | 株式会社捷太格特 | Driving force distribution device |
| CN110561970A (en) * | 2019-09-17 | 2019-12-13 | 泰州神舟传动科技有限公司 | Waterproof wheel limit system of engineering mixer truck |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |