CN215172218U - Wheel hub unit prevents muddy water structure and axle - Google Patents
Wheel hub unit prevents muddy water structure and axle Download PDFInfo
- Publication number
- CN215172218U CN215172218U CN202121029130.XU CN202121029130U CN215172218U CN 215172218 U CN215172218 U CN 215172218U CN 202121029130 U CN202121029130 U CN 202121029130U CN 215172218 U CN215172218 U CN 215172218U
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- axle
- wheel hub
- baffle
- muddy water
- hub unit
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Abstract
The utility model discloses a muddy water structure and axletree are prevented to wheel hub unit, muddy water structure is prevented to wheel hub unit includes: an axle; the hub is arranged on the axle and provided with an outer end part and an inner end part positioned on the inner side of the outer end part, the inner end part is provided with an opening communicated with an inner cavity of the hub and a squeezing part, and the squeezing part extends along the circumferential direction of the axle; the baffle, the lid is located on the opening, the through-hole has, on the axletree was located to the through-hole cover, the baffle still has the portion of leaning on that is located the extrusion portion inboard, lean on portion and extrusion portion in close contact with, the baffle forms seal structure promptly for realize good sealing connection between axletree and the wheel hub tip, when the sealed effect of oil blanket is bad, still keep good sealed effect between wheel hub and the axletree, thereby can prevent that the polluting substances from getting into the inside pollution bearing of bearing, in addition, baffle simple structure easily installs.
Description
Technical Field
The utility model relates to the technical field of auto-parts, concretely relates to muddy water structure and axle are prevented to wheel hub unit.
Background
The automobile axle comprises an axle and a hub arranged on the axle, the hub is connected with the axle through a bearing, an oil seal is arranged between the inner end of the hub and the peripheral wall of the axle, an airtight space is formed between the hub and the axle through the oil seal, the bearing is positioned in the airtight space, so that external pollutants can be prevented from entering the airtight space to pollute the bearing, however, the oil seal is easy to deform or age to lose efficacy after being used for a long time, the sealing effect of the oil seal is poor or has no sealing effect, the airtight space cannot be formed between the hub and the axle, external pollutants (muddy water, dust, gas or liquid and the like) can easily enter the bearing from the oil seal, and the bearing is polluted by the pollutants and damaged.
SUMMERY OF THE UTILITY MODEL
The not enough to prior art, the utility model aims at providing a sealed effectual and simple structure's wheel hub unit prevents muddy water structure and axle.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
mud water structure is prevented to wheel hub unit includes: an axle; the wheel hub is arranged on the axle and provided with an outer end part and an inner end part positioned on the inner side of the outer end part, the inner end part is provided with an opening communicated with an inner cavity of the wheel hub and a squeezing part, and the squeezing part extends along the circumferential direction of the axle; the baffle, the lid is located on the opening, has the through-hole, the through-hole cover is located on the axletree, the baffle still has and is located the inboard portion of supporting of extrusion portion, support the portion with extrusion portion in close contact with.
Further, the abutting portion is inclined inward with respect to the pressing portion.
Further, in the projection direction, the projection of the pressing portion overlaps with the projection of the abutting portion, so that the abutting portion is inclined inward by the pressing of the pressing portion.
Further, in the projection direction, the projection of the pressing portion overlaps with the projection of the abutting portion, so that the abutting portion is bent and deformed inward by the pressing of the pressing portion.
Further, the baffle is an elastic baffle.
Further, the periphery wall of axletree is equipped with the step portion along its circumference, the step portion with the opening corresponds, the through-hole cover is located on the step portion.
Further, the pressing portion is an end face of the inner end portion, and a projected area of the abutting portion is larger than a projected area of the opening and smaller than a projected area of the end face of the inner end portion when viewed toward the end face of the inner end portion.
The utility model also provides an axle, including axletree and above-mentioned arbitrary embodiment the wheel hub unit prevent muddy water structure, the wheel hub unit prevent muddy water structure install in on the axletree.
The utility model discloses the muddy water structure is prevented to wheel hub unit is located through setting up the lid the opening overhead gage, the support portion of baffle with extrusion portion in close contact with, the baffle forms seal structure promptly for realize good sealing connection between tip in axletree and the wheel hub, when the sealed effect of oil blanket is bad, still keep good sealed effect between wheel hub and the axletree, thereby can prevent that the polluting substances from getting into the inside pollution bearing of bearing, further prolong the life of bearing, in addition, baffle simple structure easily installs.
Drawings
Fig. 1 is a partial cross-sectional view of a front view of a muddy water prevention structure of a hub unit of the present invention;
fig. 2 is a partially enlarged view of a portion a of fig. 1.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 2, do the utility model discloses a muddy water structure is prevented to wheel hub unit, in this embodiment, muddy water structure is prevented to wheel hub unit installs on the axletree 1 of trailer axle, specifically, muddy water structure is prevented to wheel hub unit includes: an axle 1, a hub 2 attached to the axle 1, and a fender 3 attached to the axle 1.
The hub 2 has an inner cavity 20, a bearing 5 and an oil seal 6 are arranged in the inner cavity 20, and the hub 2 is arranged on the axle 1 through the bearing 5. An oil seal 6 is mounted on the axle 1 between the bearing 5 and the baffle 3. The hub 2 has an outer end 21 and an inner end 22 located inside the outer end 21, the inner end 22 is located inside the brake drum 4 of the axle, the inner end 22 has an opening 221 communicating with the hub cavity 20 and a squeezing portion 222, and the squeezing portion 222 extends in the circumferential direction of the axle 1.
The baffle 3 covers the opening 221, the baffle 3 is provided with a through hole 31, the through hole 31 is sleeved on the axle head of the axle 1, the baffle 3 is further provided with an abutting part 32 positioned on the inner side of the extrusion part 222, the abutting part 32 is in close contact with the extrusion part 222, namely, the baffle 3 forms a sealing structure, good sealing connection is realized between the axle 1 and the inner end part 22 of the hub 2, when the sealing effect of the oil seal 6 is poor, a good sealing effect is still kept between the hub 2 and the axle 1, so that a pollutant can be prevented from entering the bearing 5 to pollute the bearing 5, the service life of the bearing 5 is further prolonged, and in addition, the baffle 3 is simple in structure and easy to install. In the present embodiment, the pressing portion 222 is an end surface of the inner end portion 22, and when viewed perpendicular to the end surface of the inner end portion 22, a projected area of the abutting portion 32 is larger than a projected area of the opening 221 and smaller than a projected area of the end surface of the inner end portion 22, that is, in a case where it is ensured that the baffle 3 can completely cover the opening 221, an installation space is saved as much as possible.
In the present embodiment, the abutting portion 32 is inclined inward with respect to the pressing portion 222, and specifically, the projection direction is defined as: perpendicular to the axial direction of the axle 1 (from top to bottom), in the projection direction, the projection of the pressing portion 222 overlaps with the projection of the abutting portion 32 (both interfere), so that the abutting portion 32 is inclined inward under the pressing of the pressing portion 222, that is, the abutting portion 32 and the pressing portion 222 are always kept in close contact. Preferably, the baffle 3 is an elastic baffle 3, the elastic baffle 3 is made of PA66 (polyamide 66 or nylon 66) material, and has a certain elasticity, when the abutting portion 32 of the elastic baffle 3 is pressed by the pressing portion 222, the elastic baffle 3 bends and deforms inwards, so that the elastic baffle 3 can automatically adjust the gap between the elastic baffle 3 and the pressing portion 222, when the abutting portion 32 of the elastic baffle 3 is worn, the abutting portion 32 moves outwards under the action of its own elasticity to tightly abut against the pressing portion 222, so that the abutting portion 32 and the pressing portion 222 are always kept in tight contact.
In order to simplify the structure and the installation process, the outer circumferential wall of the axle head of the axle 1 is provided with a step part 12 (annular clamping groove) along the circumferential direction thereof, the step part 12 corresponds to the opening 221, and the through hole 31 is sleeved on the step part 12, so that the baffle 3 can be quickly installed on the axle 1. When assembling wheel hub 2 and baffle 3, install baffle 3 on step portion 12 through its through-hole 31 earlier, then install wheel hub 2 again, at the in-process of installation wheel hub 2, when extrusion portion 222 and support portion 32 produce the interference, extrusion portion 222 inwards extrudees support portion 32, support portion 32 inwards produces the elastic bending deformation this moment, when wheel hub 2 installation was accomplished, extrusion portion 222 inwards extrudes all the time and supports and form a seal structure between 32 two to support portion 32 for realize sealing connection between wheel hub 2 and the axletree 1.
The utility model also provides an axle (not shown), including axletree and above-mentioned arbitrary embodiment the wheel hub unit prevent muddy water structure, the wheel hub unit prevents muddy water structrual installation on axletree 1, in this embodiment, the axle is trailer axle.
The utility model discloses the muddy water structure is prevented to wheel hub unit is located through setting up the lid the opening overhead gage, the support portion of baffle with extrusion portion in close contact with, the baffle forms seal structure promptly for realize good sealing connection between tip in axletree and the wheel hub, when the sealed effect of oil blanket is bad, still keep good sealed effect between wheel hub and the axletree, thereby can prevent that the polluting substances from getting into the inside pollution bearing of bearing, further prolong the life of bearing, in addition, baffle simple structure easily installs.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. Mud water structure is prevented to wheel hub unit, its characterized in that includes:
an axle;
the wheel hub is arranged on the axle and provided with an outer end part and an inner end part positioned on the inner side of the outer end part, the inner end part is provided with an opening communicated with an inner cavity of the wheel hub and a squeezing part, and the squeezing part extends along the circumferential direction of the axle;
the baffle, the lid is located on the opening, has the through-hole, the through-hole cover is located on the axletree, the baffle still has and is located the inboard portion of supporting of extrusion portion, support the portion with extrusion portion in close contact with.
2. The mud-guard structure of claim 1 wherein said abutment is inwardly inclined with respect to said extrusion.
3. The mud-guard structure of claim 1, wherein a projection of the pressing portion overlaps a projection of the abutting portion in a projection direction so that the abutting portion is inclined inward by the pressing of the pressing portion.
4. The mud-guard structure of claim 1, wherein a projection of the pressing portion overlaps a projection of the abutting portion in a projection direction, so that the abutting portion is bent and deformed inward by the pressing of the pressing portion.
5. The mud-guard structure of claim 1 wherein said barrier is a resilient barrier.
6. The mud-guard structure of claim 1, wherein the outer peripheral wall of the axle is provided with a step portion along a circumferential direction thereof, the step portion corresponding to the opening, and the through hole is fitted over the step portion.
7. The hub unit muddy water preventing structure as claimed in claim 1, wherein said pressing portion is an end surface of said inner end portion, and a projected area of said abutting portion as viewed toward the end surface of said inner end portion is larger than a projected area of said opening and smaller than a projected area of the end surface of said inner end portion.
8. An axle, comprising an axle and a hub unit anti-muddy water structure as defined in any one of claims 1 to 7, said hub unit anti-muddy water structure being mounted on said axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029130.XU CN215172218U (en) | 2021-05-14 | 2021-05-14 | Wheel hub unit prevents muddy water structure and axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029130.XU CN215172218U (en) | 2021-05-14 | 2021-05-14 | Wheel hub unit prevents muddy water structure and axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172218U true CN215172218U (en) | 2021-12-14 |
Family
ID=79369604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121029130.XU Active CN215172218U (en) | 2021-05-14 | 2021-05-14 | Wheel hub unit prevents muddy water structure and axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172218U (en) |
-
2021
- 2021-05-14 CN CN202121029130.XU patent/CN215172218U/en active Active
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| GR01 | Patent grant |