CN215826378U - Hub assembly - Google Patents
Hub assembly Download PDFInfo
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- CN215826378U CN215826378U CN202121164717.1U CN202121164717U CN215826378U CN 215826378 U CN215826378 U CN 215826378U CN 202121164717 U CN202121164717 U CN 202121164717U CN 215826378 U CN215826378 U CN 215826378U
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- bearing
- hub
- hub assembly
- ring
- chamber
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- 239000002131 composite material Substances 0.000 claims abstract description 35
- 239000010687 lubricating oil Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 9
- 239000004519 grease Substances 0.000 abstract description 12
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model discloses a hub assembly, comprising: the hub comprises a hub body and a composite bearing unit, wherein a hub inner cavity is arranged in the hub body, and the composite bearing unit is arranged in the hub inner cavity; the composite bearing unit comprises a bearing sleeve, an outer bearing and an inner bearing, wherein the bearing sleeve is fixedly arranged in an inner cavity of the wheel hub, the bearing sleeve is provided with an outer bearing chamber for mounting the outer bearing, a lubricating oil chamber and an inner bearing chamber for mounting the inner bearing, and the lubricating oil chamber is positioned between the outer bearing chamber and the inner bearing chamber; the inner bearing comprises an inner bearing inner ring, the outer bearing comprises an outer bearing inner ring, and the inner bearing inner ring is fixedly connected with the outer bearing inner ring. The composite bearing unit of the hub assembly is integrally arranged in the hub body, so that the pre-adjustment of the bearing clearance is ensured, when the bearing is worn and failed or damaged, the replacement of the composite bearing unit does not influence the integral bearing working clearance, and the assembly and disassembly are simple. Moreover, the composite bearing unit can realize grease pre-injection, so that a customer does not need to inject grease by himself when using the composite bearing unit, and the assembly of the customer is facilitated.
Description
Technical Field
The utility model relates to the technical field of wheel ends, in particular to a hub assembly.
Background
At present, the wheel end products of domestic commercial vehicles are bearing wheel hub interference fit structures, have higher requirements on the processing of bearings and wheel hubs, and the spare part trouble frequently occurs, especially the bearing is easy to wear out and lose efficacy, and after the trouble occurs, if only change partial spare part and hardly guarantee the high reliability of wheel hub assembly, so need change whole wheel hub assembly, but like this can greatly increased cost. Even if only the bearing is replaced for saving the cost, the disassembly and the assembly are time-consuming and labor-consuming, the manual assembly adjustment clearance is greatly influenced by human factors, and the working state of the wheel end in a reasonable clearance is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages, the present invention provides a hub assembly, which can ensure the working clearance of the bearing, facilitate the replacement of the components, and has high reliability.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a hub assembly comprising: a hub body characterized by;
a hub inner cavity is formed in the hub body, and a composite bearing unit is arranged in the hub inner cavity;
the composite bearing unit comprises a bearing sleeve, an outer bearing and an inner bearing, wherein the bearing sleeve is fixedly arranged in the inner cavity of the wheel hub, the bearing sleeve is provided with an outer bearing chamber for mounting the outer bearing, a lubricating oil chamber and an inner bearing chamber for mounting the inner bearing, and the lubricating oil chamber is positioned between the outer bearing chamber and the inner bearing chamber;
the inner bearing comprises an inner bearing inner ring, the outer bearing comprises an outer bearing inner ring, and the inner bearing inner ring is fixedly connected with the outer bearing inner ring.
Preferably, the inner bearing inner ring and the outer bearing inner ring are fixedly connected through an opening fixing piece, the inner bearing inner ring and the inner wall of the connecting end of the outer bearing inner ring are provided with an opening fixing piece mounting groove, the outer wall of the connecting end is provided with a sealing ring mounting groove, and a sealing ring is mounted in the sealing ring mounting groove.
Preferably, the split fixing is provided as a snap ring.
Preferably, the composite bearing unit further includes an inner oil seal and an outer oil seal, the outer oil seal is disposed between the bearing housing and the outer bearing inner ring and located at an outer end portion of the hub assembly, and the inner oil seal is disposed between the bearing housing and the inner bearing inner ring and located at an inner end portion of the hub assembly.
Preferably, the hub assembly comprises an ABS gear ring fixedly mounted on the inner end of the hub body.
Preferably, the hub assembly is provided with a plurality of first bolt holes for mounting half-axle bolts, each first bolt hole comprises a light hole part and a threaded hole part which are correspondingly arranged, the light hole part is arranged at the end part of the hub body, and the threaded hole part is arranged on the bearing sleeve.
Preferably, the hub body is provided with a flange plate, and the flange plate is provided with a plurality of second bolt holes for mounting the tire bolts.
After the technical scheme is adopted, the utility model has the beneficial effects that:
according to the hub assembly, the inner bearing inner ring and the outer bearing inner ring of the composite bearing unit are directly and fixedly connected, the inner bearing outer ring of the composite bearing unit is positioned through the bearing baffle table of the inner bearing chamber, the outer bearing outer ring of the composite bearing unit is positioned through the bearing baffle table of the outer bearing chamber, so that the composite bearing unit is integrally arranged in the hub body, the bearing clearance is guaranteed to be pre-adjusted, when the bearing is worn out or damaged, the composite bearing unit is replaced, the integral bearing working clearance is not influenced, and the hub assembly is simple to assemble and disassemble.
Moreover, the composite bearing unit can realize grease pre-injection, so that a customer does not need to inject grease by himself when using the composite bearing unit, and the assembly of the customer is facilitated. And the risk of grease leakage or less grease injection of a client is avoided, the long-acting lubricating grease is injected in advance to match the design life of the whole vehicle, and the maintenance-free service life cycle can be really realized.
Drawings
FIG. 1 is a schematic structural view of a hub assembly of the present invention;
FIG. 2 is a schematic cross-sectional view at B-B in FIG. 1;
FIG. 3 is an enlarged view of the structure of the composite bearing unit of FIG. 2
1. A hub body; 101. a bearing bush stop; 2. a bearing housing; 201. a lubricating oil cavity; 202. a bearing stop of the outer bearing chamber; 203. a bearing stop of the inner bearing chamber; 3. an inner bearing; 301. an inner bearing inner race; 4. an outer bearing; 401. an outer bearing inner race; 5. a seal ring; 6. an opening fixture; 7. an inner oil seal; 8. an outer oil seal; 9. a flange plate; 10. an ABS gear ring; 11. a tire bolt; 12. a first bolt hole; 121. a light aperture portion; 122. a threaded bore portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
When a pair of wheel hub assemblies on the axle is mounted on the vehicle, the areas outside the two sides of the carriage are taken as the outer ends, the area (between two wheels) corresponding to the carriage is taken as the inner end, and in the figure 2, the left end of the wheel hub assembly is taken as the outer end, and the right end is taken as the inner end.
The hub assembly shown in fig. 2 includes: the hub comprises a hub body 1 and a composite bearing unit, wherein a hub inner cavity is arranged in the hub body 1, and the composite bearing unit is arranged in the hub inner cavity; the composite bearing unit and the hub body are in transition fit, so that the assembly is convenient, and the replacement is easy.
As shown in fig. 3, the composite bearing unit includes a bearing sleeve 2, an outer bearing 4 and an inner bearing 3, the bearing sleeve 2 is fixedly mounted in the hub inner cavity, a bearing sleeve retaining table 101 is arranged at one end of the hub inner cavity, and the outer end (left end in the figure) of the bearing sleeve 2 is axially positioned by the bearing sleeve retaining table 101. The bearing sleeve 2 is provided with an outer bearing chamber for mounting an outer bearing 4, a lubricating oil chamber and an inner bearing chamber for mounting an inner bearing 3, the lubricating oil chamber 201 is positioned between the outer bearing chamber and the inner bearing chamber, the right side of the outer bearing chamber is provided with a bearing baffle table 202 of the outer bearing chamber, and the left side of the inner bearing chamber is provided with a bearing baffle table 203 of the inner bearing chamber;
the bearing used in the present invention has the rolling elements of the inner ring and the cage as one mounting member, and for convenience of description, is referred to as a bearing inner ring.
The inner bearing 3 comprises an inner bearing inner ring 301 and an inner bearing outer ring, the outer bearing 4 comprises an outer bearing inner ring 401 and an outer bearing outer ring, the inner bearing inner ring 301 is fixedly connected with the outer bearing inner ring 401, when the inner bearing is arranged in the bearing sleeve 2, one end of the outer bearing outer ring is abutted against the bearing baffle table 202 of the outer bearing chamber, and the inner bearing outer ring is abutted against the bearing baffle table 203 of the inner bearing chamber.
The composite bearing unit shown in fig. 3 further comprises an inner oil seal 7 and an outer oil seal 8, the outer oil seal 8 is arranged between the bearing sleeve 2 and the outer bearing inner ring 401 and is positioned at the outer end part of the hub assembly, and the inner oil seal 7 is arranged between the bearing sleeve 2 and the inner bearing inner ring 301 and is positioned at the inner end part of the hub assembly.
The hub assembly comprises an ABS gear ring 10, the ABS gear ring 10 is fixedly installed on the inner end part of the hub body 1, and the ABS gear ring 10 is installed on the outer peripheral surface of the inner end part of the hub body 1 in a solid mode.
The wheel hub assembly is provided with a plurality of first bolt holes 12 for mounting half-axle bolts, each first bolt hole comprises a corresponding light hole part 121 and a corresponding threaded hole part 122, the light hole part 121 is arranged at the end part of the wheel hub body 1, and the threaded hole part 122 is arranged on the bearing sleeve 2.
The hub body 1 is provided with a flange plate 9, a plurality of second bolt holes for mounting the tire bolts 11 are formed in the flange plate 9, and the tire bolts 11 are correspondingly pressed in the second bolt holes.
The assembling steps of the hub assembly comprise:
A. pressing the outer ring of the inner bearing 3 and the outer ring of the outer bearing 4 into the bearing sleeve 2 by a press machine respectively, wherein the outer ring of the inner bearing 3 and the outer ring of the outer bearing 4 are in interference fit with the bearing sleeve 2;
B. the sealing ring is preset in the mounting groove on the inner bearing inner ring 301, then the inner bearing inner ring 301 is placed into the bearing sleeve 2, and the left end of the inner bearing outer ring abuts against the bearing baffle table 203 of the inner bearing chamber;
C. turning over the bearing sleeve 2 and the whole part of the bearing sleeve in the step B, supporting the inner bearing 3 by using a tool, putting the outer bearing inner ring 401 into the bearing sleeve 2, and enabling the right end of the outer bearing outer ring to abut against a bearing baffle table 202 of an outer bearing chamber;
D. the split fixing piece 6 is pushed into and clamped in the mounting groove of the split fixing piece 6, and the inner bearing inner ring 301 and the outer bearing inner ring 401 are fixedly connected;
E. and respectively pressing the inner oil seal 7 and the outer oil seal 8 at two ends of the bearing sleeve 2 to form a composite bearing unit.
F. And E, press-fitting the composite bearing unit in the step E into the hub inner cavity of the hub body 1, enabling the left end of the bearing sleeve 2 to abut against the bearing sleeve baffle table 101, and press-fitting the ABS gear ring 10 on the inner end of the hub body 1 to form a hub assembly.
When the hub assembly is bridged, the inner bearing inner ring 301 and the outer bearing inner ring 401 are in clearance fit with the axle shaft sleeve.
According to the hub assembly, the inner bearing inner ring and the outer bearing inner ring of the composite bearing unit after being installed are directly and fixedly connected, the inner bearing outer ring is positioned through the bearing baffle table of the inner bearing chamber, the outer bearing outer ring is positioned through the bearing baffle table of the outer bearing chamber, so that the composite bearing unit is integrally installed in the hub body, the bearing clearance is guaranteed to be pre-adjusted, when the bearing is damaged, the bearing composite unit is replaced, the influence on the working clearance of the bearing is avoided, and the bearing composite unit and the hub body are simple to disassemble and assemble.
Because the grease can be pre-injected by the composite bearing unit, the grease does not need to be injected by a customer when the composite bearing unit is used, and the composite bearing unit is convenient for the customer to install and use. And the risk of grease leakage or less grease injection during customer installation is avoided, the long-acting lubricating grease is injected in advance to match the design life of the whole vehicle, and the maintenance-free service life cycle is really realized.
The bearing unit and the hub body are not in complex association any more, the overall working clearance is not influenced even if the bearing unit and the hub body are interchanged, and the mounting is convenient and reliable.
The foregoing is illustrative of the best mode of the utility model and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (7)
1. A hub assembly comprising: a hub body characterized by;
a hub inner cavity is formed in the hub body, and a composite bearing unit is arranged in the hub inner cavity;
the composite bearing unit comprises a bearing sleeve, an outer bearing and an inner bearing, wherein the bearing sleeve is fixedly arranged in the inner cavity of the wheel hub, the bearing sleeve is provided with an outer bearing chamber for mounting the outer bearing, a lubricating oil chamber and an inner bearing chamber for mounting the inner bearing, and the lubricating oil chamber is positioned between the outer bearing chamber and the inner bearing chamber;
the inner bearing comprises an inner bearing inner ring, the outer bearing comprises an outer bearing inner ring, and the inner bearing inner ring is fixedly connected with the outer bearing inner ring.
2. The hub assembly of claim 1, wherein the inner race and the outer race are fixedly connected by a split fastener, an inner wall of a connecting end of the inner race and the outer race is provided with a mounting groove for mounting the split fastener, an outer wall of the connecting end is provided with a mounting groove for a sealing ring, and a sealing ring is mounted in the mounting groove for the sealing ring.
3. The hub assembly of claim 2, wherein the split retaining member is configured as a snap ring.
4. The hub assembly of claim 2, wherein the composite bearing unit further includes an inner oil seal and an outer oil seal, the outer oil seal being disposed between the bearing housing and the outer bearing inner race and at an outer end of the hub assembly, and the inner oil seal being disposed between the bearing housing and the inner bearing inner race and at an inner end of the hub assembly.
5. The hub assembly of claim 4, wherein the hub assembly includes an ABS ring gear fixedly mounted on the hub body inner end portion.
6. The hub assembly of claim 1 wherein the hub assembly is provided with a first plurality of bolt holes for mounting axle half bolts, each of the first bolt holes including a correspondingly disposed unthreaded hole portion opening in the hub body end and a threaded hole portion opening in the bearing sleeve.
7. The hub assembly of claim 1 wherein the hub body defines a flange defining a plurality of second bolt holes for receiving the tire bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164717.1U CN215826378U (en) | 2021-05-27 | 2021-05-27 | Hub assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164717.1U CN215826378U (en) | 2021-05-27 | 2021-05-27 | Hub assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215826378U true CN215826378U (en) | 2022-02-15 |
Family
ID=80189170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121164717.1U Active CN215826378U (en) | 2021-05-27 | 2021-05-27 | Hub assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215826378U (en) |
-
2021
- 2021-05-27 CN CN202121164717.1U patent/CN215826378U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 261307 south head of Weizi Town, Changyi City, Weifang City, Shandong Province Patentee after: Shandong Haoxin Machinery Co.,Ltd. Country or region after: China Address before: 261307 south head of Weizi Town, Changyi City, Weifang City, Shandong Province Patentee before: SHANDONG HAOXIN MACHINERY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |