CN213839309U - Cargo vehicle axle of oil blanket easy to assemble - Google Patents
Cargo vehicle axle of oil blanket easy to assemble Download PDFInfo
- Publication number
- CN213839309U CN213839309U CN202021824658.1U CN202021824658U CN213839309U CN 213839309 U CN213839309 U CN 213839309U CN 202021824658 U CN202021824658 U CN 202021824658U CN 213839309 U CN213839309 U CN 213839309U
- Authority
- CN
- China
- Prior art keywords
- wheel hub
- oil
- bearing
- oil seal
- axle housing
- 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.)
- Active
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a cargo vehicle axle of easy to assemble oil blanket includes wheel hub, axle housing and semi-axis, wheel hub inner bearing includes wheel hub inner bearing inner race and wheel hub inner bearing outer lane, wheel hub inner bearing inner race fixed mounting is on the axle housing, wheel hub inner bearing inner race the inner portion of extending after setting up, extend after and install in the portion the oil blanket. The utility model discloses a bearing oil seal structure sets up the back with wheel hub bearing inner race and prolongs the portion, prolongs the portion setting after with and as the oil blanket seat, as the partly of combination oil blanket, has saved the inner ring of combination oil blanket for the installation is more simple and convenient. The disk part perpendicular to the axial direction can support the inner oil seal of the wheel hub to enable the inner oil seal to be incapable of moving in the radial direction, and can also be matched with the inner oil seal of the wheel hub to enable the sealing effect to be better, so that a labyrinth flow passage for oil leakage is provided with one more separation.
Description
Technical Field
The utility model relates to a cargo vehicle makes technical field, specifically is bearing oil blanket structure.
Background
The oil seal is generally used for sealing lubricating oil on a shaft, and has the function of isolating an oil cavity from the outside, so that the lubricating oil in the oil cavity is prevented from leaking and dust is prevented from entering to cause friction damage of the shaft.
As shown in fig. 1, the prior art bearing oil seal structure generally includes two parts, namely a first ring 21 and a second ring 22, the second ring 22 is fixed on the axle housing 2, the section of the second ring 22 is in an "L" shape at one side, and it includes a cylindrical sleeve 221 and a sleeve disc 222 which are integrally formed, the sleeve 221 is fixed on the axle housing 2; the first ring 21 is fixed with the hub 1 and rotates together with the hub 1. A lubricating oil seal 23 structure is arranged between the sleeve 221 and the first ring 21, and the seal lip is in interference fit with the seal surface; the sleeve disc 222 is arranged at the rear side of the bottom of the first ring 21; a sealing structure 23 is arranged between the sleeve disc 222 and the first ring 21, and the sealing structure 23 is specifically a structure formed by interference fit of a sealing lip and a sealing surface.
Chinese utility model patent publication No. CN 105221750 a discloses a mud-proof oil seal, and its oil seal structure also adopts above-mentioned scheme.
Because the first ring and the second ring are provided with radial sleeve discs, the combined oil seal forms a labyrinth structure and has good oil sealing performance. But is limited in space during installation and requires good installation techniques.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a cargo vehicle axle of easy to assemble oil blanket.
For solving the technical problem, the utility model discloses a cargo vehicle axle of easy to assemble oil blanket includes 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, wheel hub outer bearing include with axle housing complex wheel hub outer bearing inner race and with wheel hub matched with wheel hub outer bearing outer race, wheel hub inner bearing include with axle housing complex wheel hub inner bearing inner race and with wheel hub matched with wheel hub inner bearing outer race, wheel hub inner bearing inner race fixed mounting is on the axle housing, wheel hub inner bearing inner race inner sets up the back portion of extending, install the oil blanket in the back portion of extending.
The utility model discloses a bearing oil seal structure sets up the back with wheel hub bearing inner race and prolongs the portion, prolongs the portion setting after with and as the oil blanket seat, as the partly of combination oil blanket, has saved the inner ring of combination oil blanket for the installation is more simple and convenient.
The trailing portion includes a body parallel to the axial direction, a disc perpendicular to the axial direction. The disk part perpendicular to the axial direction can support the inner oil seal of the wheel hub to enable the inner oil seal to be incapable of moving in the radial direction, and can also be matched with the inner oil seal of the wheel hub to enable the sealing effect to be better, so that a labyrinth flow passage for oil leakage is provided with one more separation.
The oil seal comprises a sleeve parallel to an axial cylindrical surface and a sleeve disc perpendicular to the axial direction, a lubricating oil sealing structure is arranged on the sleeve disc, and the sealing structure comprises a sealing lip in close contact fit with the body and a sealing lip in close contact fit with the disc part.
The disc-shaped part is provided with a flange, and the sleeve disc is provided with a sealing lip at a position corresponding to the flange.
The oil seal further comprises a second sleeve and a second sleeve disc which are installed in the sleeve, and a lubricating oil sealing structure is arranged on the second sleeve disc.
The bottom of the rear extending part is provided with a conical surface, and an O-shaped ring is arranged in the conical surface.
The utility model discloses still relate to a cargo vehicle axle, including above-mentioned cargo vehicle axle bearing oil seal structure.
The utility model discloses a bearing oil seal structure sets up the back with wheel hub bearing inner race and prolongs the portion, prolongs the portion setting after with and as the oil blanket seat, as the partly of combination oil blanket, has saved the inner ring of combination oil blanket for the installation is more simple and convenient. The disk part perpendicular to the axial direction can support the inner oil seal of the wheel hub to enable the inner oil seal to be incapable of moving in the radial direction, and can also be matched with the inner oil seal of the wheel hub to enable the sealing effect to be better, so that a labyrinth flow passage for oil leakage is provided with one more separation.
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 utility model.
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 diagram of the bearing oil seal structure of the present invention.
Detailed Description
As shown in fig. 2 and 3, the utility model discloses a cargo-carrying automobile wheel limit structure, including wheel hub 1, axle housing 2, semi-axis 3, be equipped with wheel hub outer bearing 8 and wheel hub inner bearing 10 between wheel hub 1 and the axle housing 2, wheel hub outer bearing 8 include with axle housing 2 complex wheel hub outer bearing inner circle 81 and with wheel hub matched with wheel hub outer bearing outer lane 82, wheel hub inner bearing 10 include with axle housing 2 complex wheel hub inner bearing inner circle 101 and with wheel hub matched with wheel hub inner bearing outer lane 102, wheel hub inner bearing inner circle 101 sets up outer first extension 1011, wheel hub outer bearing inner circle 81 inside second extension 811, first extension 1011 contacts with second extension 811.
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 utility model discloses a cargo vehicle axle of easy to assemble oil blanket includes wheel hub 1, axle housing 2, semi-axis 3, be equipped with wheel hub outer bearing 8 and wheel hub inner bearing 10 between wheel hub 1 and the axle housing 2, wheel hub outer bearing 8 include with 2 complex wheel hub outer bearing inner rings 81 of axle housing and with wheel hub matched with wheel hub outer bearing outer race 82, wheel hub inner bearing 10 include with 2 complex wheel hub inner bearing inner rings 101 of axle housing and with wheel hub matched with wheel hub inner bearing outer race 102, wheel hub inner bearing inner rings 101 fixed mounting is on the axle housing, wheel hub inner bearing inner rings 101 the inner sets up back extension portion 102, back extension portion 102 is as the oil seal seat, the last installation of oil seal seat oil blanket 7 in the wheel hub. 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 runner of current oil blanket and inner bearing only arranges along the axial, the utility model discloses a labyrinth runner not only has along axial arrangement, sets up flange 1023 and arch 17 immediately at the back of axial labyrinth runner moreover, has formed the radial labyrinth runner mutually vertically with axial labyrinth runner. 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 utility model discloses a cargo vehicle still includes cargo vehicle wheel side gear oil lubrication structure, includes wheel hub 1, axle housing 2 and semi-axis 3 like figure 4, and the gap between axle housing 2 and the semi-axis 3 forms semi-axis lubricating oil passageway 4, sets up the oil blanket in the wheel hub between axle housing and the wheel hub.
The utility model discloses a wheel hub has cancelled the oil blanket 5 between the outer tip of semi-axis 3 and the axle housing 2, has cancelled the outer oil blanket of wheel hub of axle housing 2 and wheel hub 1 simultaneously, and the gap between axle housing 2 and semi-axis 3 forms semi-axis lubricating oil passageway 4, and the front end of semi-axis 3 leaves oil circuit gap 41 with the axle housing front end, as semi-axis lubricating oil passageway 4's partly, can be lubricating oil from the gap between axle housing 2 and the semi-axis 3 get into the gap between axle housing 2 and the wheel hub 1.
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 adopting such structure, the utility model discloses the moist mode of wheel limit bearing is gear oil lubrication, directly adopts the owner promptly to subtract the same gear oil lubrication of the inside, can realize non-maintaining throughout the life, also changes the gear oil on wheel limit when changing the owner and subtracting gear oil, can reduce the maintenance cost and the conveying efficiency in the use. 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 preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art may make modifications and changes to the equivalent embodiment by using the technical contents disclosed above. The technical matters of the present invention, including any simple modification, equivalent changes and modifications, do not depart from the technical matters of the present invention, and all fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a cargo vehicle axle of easy to assemble oil blanket 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, wheel hub outer bearing include with axle housing complex wheel hub outer bearing inner circle and with wheel hub matched with wheel hub outer bearing outer lane, wheel hub inner bearing include with axle housing complex wheel hub inner bearing inner circle and with wheel hub matched with wheel hub inner bearing outer lane, wheel hub inner bearing inner circle fixed mounting is on the axle housing, wheel hub inner bearing inner circle inner sets up the back portion of extending, the back portion of extending goes up the installation oil blanket.
2. The cargo vehicle axle facilitating oil seal installation according to claim 1, wherein: the trailing portion includes a body parallel to the axial direction, a disc perpendicular to the axial direction.
3. The cargo vehicle axle with easy-to-install oil seal as defined in claim 2, wherein: the oil seal comprises a sleeve parallel to an axial cylindrical surface and a sleeve disc perpendicular to the axial direction, a lubricating oil sealing structure is arranged on the sleeve disc, and the sealing structure comprises a sealing lip in close contact fit with the body and a sealing lip in close contact fit with the disc part.
4. The oil-sealed cargo vehicle axle of claim 3, wherein: the disc-shaped part is provided with a flange, and the sleeve disc is provided with a sealing lip at a position corresponding to the flange.
5. The oil-sealed cargo vehicle axle according to any one of claims 2 to 4, wherein: the oil seal further comprises a second sleeve and a second sleeve disc which are installed in the sleeve, and a lubricating oil sealing structure is arranged on the second sleeve disc.
6. The oil-sealed cargo vehicle axle of claim 5, wherein: the bottom of the rear extending part is provided with a conical surface, and an O-shaped ring is arranged in the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021824658.1U CN213839309U (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle axle of oil blanket easy to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021824658.1U CN213839309U (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle axle of oil blanket easy to assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839309U true CN213839309U (en) | 2021-07-30 |
Family
ID=77003614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021824658.1U Active CN213839309U (en) | 2020-08-27 | 2020-08-27 | Cargo vehicle axle of oil blanket easy to assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839309U (en) |
-
2020
- 2020-08-27 CN CN202021824658.1U patent/CN213839309U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1994294B1 (en) | Annular sealing assembly, in particular for wheel hubs | |
| US20130127119A1 (en) | Sealing assembly for rolling bearings | |
| CN107917156B (en) | Brake dust cover | |
| US9464720B2 (en) | Annular sealing assembly, in particular for wheel hubs | |
| JP2012229763A (en) | Seal structure | |
| CN213839309U (en) | Cargo vehicle axle of oil blanket easy to assemble | |
| CN214240295U (en) | Wheel-side gear oil lubrication maintenance-free truck | |
| US4438990A (en) | Sealing assembly for a rolling bearing | |
| CN213831233U (en) | Cargo vehicle axle with conveniently maintained side wheels | |
| CN112196905A (en) | Cargo vehicle axle bearing oil seal structure and axle | |
| CN112158156A (en) | Cargo vehicle wheel side gear oil lubrication structure and axle | |
| JP5687537B2 (en) | Wheel drive device | |
| CN112208265A (en) | Cargo vehicle wheel limit structure | |
| CN210821667U (en) | Vehicle and axle | |
| CN210371899U (en) | Differential mechanism and drive shaft cooperation oil blanket structure and car | |
| CN211202874U (en) | Automobile semi-axle dustproof structure | |
| CN214146299U (en) | Hub bearing sealing structure | |
| JP2009041589A (en) | Bearing device and differential | |
| CN220769965U (en) | Combined seal for railway hub bearing | |
| JP2014152790A (en) | Seal device for rolling bearing | |
| CN213575466U (en) | Wheel reduction box sealing combination structure | |
| US20230040525A1 (en) | Wheel bearing assembly | |
| CN115848067B (en) | Axle wheel end sealing structure of commercial vehicle | |
| US11761539B2 (en) | Seal assembly for a vehicle motorized wheel | |
| JP6071499B2 (en) | Bearing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |