CN217440779U - Wheel-side dustproof device of wheel type excavator - Google Patents
Wheel-side dustproof device of wheel type excavator Download PDFInfo
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- CN217440779U CN217440779U CN202221324778.4U CN202221324778U CN217440779U CN 217440779 U CN217440779 U CN 217440779U CN 202221324778 U CN202221324778 U CN 202221324778U CN 217440779 U CN217440779 U CN 217440779U
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- support ring
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Abstract
The utility model is suitable for an axle wheel limit dustproof technical field provides a wheel limit dust keeper of wheeled excavator, including wheel hub, back shaft, dustproof subassembly, skeleton oil blanket, support ring and brake disc, wheel hub establishes on the back shaft through the bearing housing, and the brake disc passes through the bolt setting on wheel hub and be equipped with dustproof subassembly between it and the support ring; the support ring is sleeved on the support shaft, and the section of the support ring is step-shaped; the dustproof assembly is sleeved on the first step of the support ring, and the framework oil seal is sleeved on the second step of the support ring. The utility model arranges the dustproof component between the brake disc and the support ring sleeved on the support shaft, the dustproof component is arranged on the first step of the support ring, and the framework oil seal sleeve is arranged on the second step of the support ring; and after the support ring, the dustproof assembly and the framework oil seal are assembled, a containing cavity is formed, so that dust can be collected conveniently. The dustproof device is simple in structure and good in dustproof effect, the service life of the framework oil seal is prolonged, and the maintenance cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the axle wheel limit is dustproof, especially, relate to a wheel limit dust keeper of wheeled excavator.
Background
At present, the working environment of a wheel loader in the domestic engineering machinery industry is severe, and particularly in working conditions of coal mines, silt and the like, the damage rate of the working environment to a hub oil seal of a drive axle is high. At present, a structure that a framework oil seal is assembled on a hub is mainly adopted for a hub oil seal of a drive axle of a loader, and the oil seal is exposed in the air for a long time, so that the dustproof effect on the hub oil seal is particularly important.
In the prior art, a wheel hub oil seal dustproof device generally adopts a mode of welding a wheel edge supporting shaft with a dustproof cover to protect an oil seal. Although the dust keeper of this structure can block that external sand grain, rubble get into the wheel hub oil blanket, prevents that the oil blanket is impaired, nevertheless welding dust cover technology is complicated and yielding, appears dust cover and wheel hub oil blanket disalignment phenomenon easily, and the dustproof effect of dust cover is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wheel limit dust keeper of wheeled excavator can effectively solve above-mentioned problem.
The utility model discloses a realize like this:
a wheel-side dustproof device of a wheel type excavator comprises a wheel hub, a supporting shaft, a dustproof assembly, a skeleton oil seal, a supporting ring and a brake disc, wherein the wheel hub is sleeved on the supporting shaft through a bearing, the brake disc is arranged on the wheel hub through a bolt, and the dustproof assembly is arranged between the brake disc and the supporting ring; the support ring is sleeved on the support shaft, and the section of the support ring is step-shaped; the dustproof assembly is sleeved on the first step of the support ring, and the framework oil seal sleeve is arranged on the second step of the support ring.
As a further improvement, the dustproof assembly comprises a dustproof cover arranged on the first step and a dustproof inner sleeve arranged on the first step and matched with the dustproof cover, and the brake disc is sleeved on the dustproof inner sleeve.
As a further improvement, a sealing ring is sleeved on the dustproof inner sleeve and positioned between the dustproof cover and the brake disc.
As a further improvement, the end of the support ring remote from the bearing is provided with an annular projection.
As a further improvement, a chromium coating is arranged on the second step.
As a further improvement, the wheel hub, the brake disc, the framework oil seal, the supporting shaft, the supporting ring and the dustproof assembly are coaxially arranged.
The utility model has the advantages that: the utility model arranges the dustproof component between the brake disc and the support ring sleeved on the support shaft, the dustproof component is arranged on the first step of the support ring, and the framework oil seal sleeve is arranged on the second step of the support ring; and after the support ring, the dustproof assembly and the framework oil seal are assembled, a containing cavity is formed, so that dust can be collected conveniently. The dustproof device is simple in structure and good in dustproof effect, the service life of the framework oil seal is prolonged, and the maintenance cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a wheel-side dust-proof device of a wheel excavator according to an embodiment of the present invention;
fig. 2 is a sectional view of a wheel-side dust-proof device of a wheel excavator according to an embodiment of the present invention;
fig. 3 is an exploded view of a wheel-side dust guard of a wheel excavator according to an embodiment of the present invention.
Reference numerals:
10-a hub; 20-supporting the shaft; 30-a dust-proof assembly; 31-a dust cover; 32-dustproof inner sleeve; 33-sealing ring; 40-framework oil seal; 50-a support ring; 51-a first step; 52-a second step; 53-annular projection; 60-a brake disc; 70-a bearing; 80-bolt.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1-3, a wheel-side dust-proof device of a wheel excavator comprises a wheel hub 10, a support shaft 20, a dust-proof assembly 30, a skeleton oil seal 40, a support ring 50 and a brake disc 60, wherein the wheel hub 10 is sleeved on the support shaft 20 through a bearing 70, the brake disc 60 is arranged on the wheel hub 10 through a bolt 80, and the dust-proof assembly 30 is arranged between the brake disc and the support ring 50; the support ring 50 is sleeved on the support shaft 20, and the cross section of the support ring is step-shaped; the dustproof assembly 30 is sleeved on a first step 51 of the support ring 50, and the framework oil seal 40 is sleeved on a second step 52 of the support ring 50. In the present embodiment, the bearing 70 is a tapered roller bearing 70; the support ring 50, the dustproof assembly 30 and the framework oil seal 40 are assembled to form a containing cavity for collecting dust and preventing the dust from directly entering the framework oil seal 40; the hub 10, the brake disc 60, the skeleton oil seal 40, the support shaft, the support ring 50 and the dust-proof assembly 30 are coaxially arranged. The utility model arranges the dustproof component 30 between the brake disc 60 and the support ring 50 sleeved on the support shaft 20, the dustproof component 30 is arranged on the first step 51 of the support ring 50, and the framework oil seal 40 is sleeved on the second step 52 of the support ring 50; the dustproof device is simple in structure and good in dustproof effect, the service life of the framework oil seal 40 is prolonged, and the maintenance cost is reduced.
Further, the dustproof assembly 30 comprises a dustproof cover 31 arranged on the first step 51 and a dustproof inner sleeve 32 arranged on the first step 51 and matched with the dustproof cover 31, and the brake disc 60 is sleeved on the dustproof inner sleeve 32; and a sealing ring 33 is sleeved on the dustproof inner sleeve 32 and positioned between the dustproof cover 31 and the brake disc 60. In this embodiment, the cross-section of the dust cover 31 is a concave structure, and the cross-section of the dust-proof inner sleeve 32 is a convex structure, so that the dust cover and the dust-proof inner sleeve are used in a matching manner, dust is prevented from entering, the oil leakage fault of the framework oil seal 40 is reduced, the service life of the framework oil seal 40 is prolonged, and the maintenance cost is reduced. In addition, the thickness of the dust cover 31 and the dust-proof inner sleeve 32 is 2-6mm, the structure is stable, and deformation of the dust cover and the dust-proof inner sleeve is prevented. And a sealing ring 33 is sleeved on the dustproof inner sleeve 32 and positioned between the dustproof cover 31 and the brake disc 60, so that the dustproof effect is further improved.
Further, an end of the support ring 50 away from the bearing 70 is provided with an annular protrusion 53. In this embodiment, an annular protrusion 53 is disposed at an end of the support ring 50 away from the bearing 70, and is used for limiting the dust cover 31, so as to prevent the dust cover 31 from being displaced and affecting the dust-proof effect.
Further, a chromium plating layer is disposed on the second step 52. In this embodiment, the surface of the second step 52 of the support ring 50 and the inner hole of the framework oil seal 40 have high-speed relative rotation movement, the support ring 50 is nitrided, and a chromium coating is provided on the surface of the support ring 50, so as to improve the wear resistance of the support ring 50 and improve the service life; after the support ring 50 is used for a certain time, the second step 52 surface of the support ring 50 can be replaced after being worn to a certain degree, only the support ring 50 needs to be replaced, the whole support shaft 20 does not need to be replaced, and the maintenance cost is reduced.
The embodiment also provides a wheeled excavator, has adopted foretell wheel limit dust keeper, prevents that the dust from getting into skeleton oil blanket 40, improves skeleton oil blanket 40's life, reduces this wheeled excavator's cost of maintenance.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The wheel-side dustproof device of the wheel excavator is characterized by comprising a wheel hub (10), a supporting shaft (20), a dustproof assembly (30), a framework oil seal (40), a supporting ring (50) and a brake disc (60), wherein the wheel hub (10) is sleeved on the supporting shaft (20) through a bearing (70), the brake disc (60) is arranged on the wheel hub (10) through a bolt (80), and the dustproof assembly (30) is arranged between the brake disc and the supporting ring (50); the support ring (50) is sleeved on the support shaft (20), and the section of the support ring is step-shaped; the dustproof assembly (30) is sleeved on a first step (51) of the support ring (50), and the framework oil seal (40) is sleeved on a second step (52) of the support ring (50).
2. The wheel-side dust-proof device of a wheeled excavator according to claim 1, wherein the dust-proof assembly (30) comprises a dust-proof cover (31) provided on the first step (51) and a dust-proof inner sleeve (32) provided on the first step (51) and adapted to the dust-proof cover (31), and the brake disc (60) is fitted over the dust-proof inner sleeve (32).
3. The wheel-side dust-proof device of a wheeled excavator according to claim 2, wherein a seal ring (33) is fitted over the dust-proof inner sleeve (32) between the dust-proof cover (31) and the brake disk (60).
4. Wheel-rim dust protection for a wheeled excavator according to claim 1, characterized in that the support ring (50) is provided with an annular projection (53) at the end remote from the bearing (70).
5. The wheel-rim dust-proof device of a wheeled excavator according to claim 1, wherein the second step (52) is provided with a chromium plating layer.
6. The wheel-side dust prevention device of a wheeled excavator according to claim 1, wherein the hub (10), the brake disk (60), the skeleton oil seal (40), the support shaft, the support ring (50), and the dust prevention assembly (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324778.4U CN217440779U (en) | 2022-05-30 | 2022-05-30 | Wheel-side dustproof device of wheel type excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221324778.4U CN217440779U (en) | 2022-05-30 | 2022-05-30 | Wheel-side dustproof device of wheel type excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217440779U true CN217440779U (en) | 2022-09-16 |
Family
ID=83222608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221324778.4U Active CN217440779U (en) | 2022-05-30 | 2022-05-30 | Wheel-side dustproof device of wheel type excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217440779U (en) |
-
2022
- 2022-05-30 CN CN202221324778.4U patent/CN217440779U/en active Active
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