CN104214222A - Shaft sleeve structure - Google Patents
Shaft sleeve structure Download PDFInfo
- Publication number
- CN104214222A CN104214222A CN201310213916.0A CN201310213916A CN104214222A CN 104214222 A CN104214222 A CN 104214222A CN 201310213916 A CN201310213916 A CN 201310213916A CN 104214222 A CN104214222 A CN 104214222A
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- layer
- shaft sleeve
- wear
- shaft
- 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
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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a shaft sleeve structure. The shaft comprises a shaft hole matched with a shaft, is composed of a conical ring and two circular rings at two ends of the conical ring, and is characterized in that the outer surfaces of the conical ring and the two circular rings are provided with a carburizing layer, and the surface of the carburizing layer is coated with a wear-resistant layer; and the thickness of the carburizing layer is 3 mm-5mm, and the thickness of the wear-resistant layer is 0.1 mm-0.3 mm. Because the carburizing layer and the wear-resistant layer are added on the surface of the shaft sleeve, the hardness, the abrasion resistance, the impact resistance and the corrosion resistance of the surface of the shaft sleeve are obviously improved. The processing technology of forming the carburizing layer and the wear-resistant layer is relatively simple, and also the cost of other processing technologies (such as heat treatment technology) is reduced. The shaft sleeve has the advantages of relatively low production cost, obviously improved durability, relatively long service life and the like.
Description
Technical field
The present invention relates to a kind of axle sleeve structure, be specifically related to a kind of thrust-bearing inner ring coordinated with axle.
Background technique
Existing axle sleeve or bearing inner ring are made by carbon steel or with smart steel through processes such as casting, forging, machining and heat treatments, but due to axle sleeve or or the large usage quantity of bearing inner ring, and be part easy to wear, adopting existing processing technology to carry out processing, to have cost of production high, manufacturing process is longer, and the problem that working life is shorter.Cause the main cause of these the problems referred to above to be, the probability of frictional force, impact force and shearing force etc. that the outer surface due to axle sleeve or bearing inner ring is subject to is comparatively large, is therefore easy to wearing and tearing.How to improve the working life of axle sleeve or bearing inner ring, and can reduce manufacturing cost, having become those skilled in the art has technical problem to be solved.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, provide a kind of manufacturing cost low, the axle sleeve structure of long service life.
For achieving the above object, technological scheme of the present invention is a kind of axle sleeve structure of design, this axle sleeve comprises the axis hole coordinated with axle, described axle sleeve is made up of circular cone ring and the two sections of annulus being located at circular cone ring two ends, it is characterized in that, be provided with carburized case at the outer surface of described circular cone ring and two sections of annulus, be coated with wearing layer on the surface of described carburized case.
Wherein preferred technological scheme is that the thickness of described carburized case is 3mm ~ 5mm.
Preferred technological scheme also has, and the thickness of described wearing layer is 0.1mm ~ 0.3mm.
Advantage of the present invention and beneficial effect are: because this axle sleeve only adds carburized case and wear resistant coating on its surface, the hardness on its surface, abrasion resistance, impact resistance and corrosion resistance just can be made all to be significantly improved.And the processing technology forming carburized case and wear resistant coating is really comparatively simple, the cost (as heat treatment process) of other processing technologys can be reduced simultaneously.It is lower that this axle sleeve has cost of production, and durability improves significantly, the advantages such as working life is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of axle sleeve of the present invention.
In figure: 1, axle sleeve; 2, axis hole; 3, circular cone ring; 4, annulus; 5, carburized case; 6, wearing layer.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technological scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, the present invention is a kind of axle sleeve structure, and this axle sleeve 1 comprises the axis hole 2 coordinated with axle, and this axle sleeve 1 is made up of circular cone ring 3 and the two sections of annulus 4 being located at circular cone ring 3 two ends, be provided with carburized case 5 at the outer surface of circular cone ring 3 and two sections of annulus 4, be coated with wearing layer 6 on the surface of carburized case 5.
Preferred embodiment is that the thickness of carburized case 5 is 4mm in the present invention.
Preferred embodiment also has in the present invention, and the thickness of wearing layer 6 is 0.2mm.
This axle sleeve is mainly used in the inner ring of thrust-bearing.Its conical surface can bear axial force.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. an axle sleeve structure, this axle sleeve comprises the axis hole coordinated with axle, and described axle sleeve is made up of circular cone ring and the two sections of annulus being located at circular cone ring two ends, it is characterized in that, be provided with carburized case at the outer surface of described circular cone ring and two sections of annulus, be coated with wearing layer on the surface of described carburized case.
2. axle sleeve structure as claimed in claim 1, it is characterized in that, the thickness of described carburized case is 3mm ~ 5mm.
3. axle sleeve structure as claimed in claim 1, it is characterized in that, the thickness of described wearing layer is 0.1mm ~ 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213916.0A CN104214222A (en) | 2013-05-29 | 2013-05-29 | Shaft sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213916.0A CN104214222A (en) | 2013-05-29 | 2013-05-29 | Shaft sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214222A true CN104214222A (en) | 2014-12-17 |
Family
ID=52096022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213916.0A Pending CN104214222A (en) | 2013-05-29 | 2013-05-29 | Shaft sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214222A (en) |
-
2013
- 2013-05-29 CN CN201310213916.0A patent/CN104214222A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |