CN204186807U - The spherical steel ball of a kind of ceramic coating - Google Patents
The spherical steel ball of a kind of ceramic coating Download PDFInfo
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- CN204186807U CN204186807U CN201420627799.2U CN201420627799U CN204186807U CN 204186807 U CN204186807 U CN 204186807U CN 201420627799 U CN201420627799 U CN 201420627799U CN 204186807 U CN204186807 U CN 204186807U
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- steel ball
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Abstract
The utility model relates to the spherical steel ball of a kind of ceramic coating, comprises steel ball body and is coated at least one deck ceramic coating layer of described steel ball body; Described steel ball body is evenly provided with multiple projection; The outer surface of described steel ball body is provided with boride layer; The height of described projection is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.By being provided with projection on steel ball body, increasing the combination force of steel ball body and ceramic coating layer, making ceramic coating difficult drop-off; Further, protruding meeting be combined with ceramic coating layer, plays a supporting role, and improves the hardness of steel ball.
Description
Technical field
The utility model belongs to bearing steel pearl field, particularly relates to the spherical steel ball of a kind of ceramic coating.
Background technique
Steel ball is the important component part of rolling bearing, and the steel ball used in existing bearing includes two kinds, and one is rod formula steel ball, and one is spheroidal steel ball.Wherein, rod formula steel ball is mainly used in the large field of bearings of load-bearing, and spheroidal steel ball is generally applied to the lighter field of load-bearing.
And in the field that load-bearing is lighter, generally all require that bearing has higher precision, and such precision mainly relies on the precision of the circularity of steel ball and steel ball to realize.In order to realize the circularity of steel ball, requiring that the material manufacturing steel ball has certain plasticity, but but result in the decline of hardness.When this kind of steel ball being used for the large or high-revolving equipment of pressure, easily cause steel ball to occur scar or compressive deformation because of the impact of other parts, the working life of reducing steel ball also can exert an adverse impact to other adjacent parts simultaneously.
For this reason, existing technology proposes the technological scheme of the outer surface plating layer of ceramic film at steel ball, to increase intensity and the abrasion resistance of ball surfaces.But present ceramic coating steel ball does not really realize the performance of ceramic coating, the defect that ceramic coating has easily occurs plated film obscission when bearing high pressure, and the finite thickness of ceramic coating, is difficult to the high strength requirement really realizing steel ball.
Model utility content
The purpose of this utility model proposes improvement opportunity scheme to existing plated film steel ball, not high with the relative hardness overcoming steel ball, and plated film is easy to the problem of coming off.
The utility model is achieved through the following technical solutions:
The spherical steel ball of a kind of ceramic coating, comprises steel ball body and is coated at least one deck ceramic coating layer of described steel ball body;
Described steel ball body is evenly provided with multiple projection;
The outer surface of described steel ball body is provided with boride layer;
The height of described projection is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.
The thickness of ceramic coating layer described in adjacent two layers is different, and from inside to outside, the thickness of described ceramic coating layer reduces gradually.
The thickness of described boride layer is greater than the total thickness of described ceramic coating layer.
Described projection is round column structure or circular cone structure.
Described circular cone is greater than the radius of the one end away from described steel ball body close to the radius of one end of described steel ball body.
The upper surface of described projection is curved-surface structure.
The beneficial effects of the utility model are:
1, by the technological scheme of the application, by being provided with projection on steel ball body, increasing the combination force of steel ball body and ceramic coating layer, making ceramic coating difficult drop-off.
2, by being provided with projection on steel ball body, this projection can be combined with ceramic coating layer, plays a supporting role, and improves the hardness of steel ball.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the spherical steel ball of the utility model ceramic coating;
Fig. 2 is the schematic cross-section of spherical another embodiment of steel ball of the utility model ceramic coating.
Embodiment
Describe the technical solution of the utility model in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and the technical solution of the utility model being described, and can not be interpreted as being the restriction to technical solutions of the utility model.
In this application, steel ball body is prior art, and its material adopted and preparation process are existing technology, different materials can be selected as required to process steel ball body, therefore, in this application, be not described in detail steel ball body.
Embodiment 1
As shown in Figure 1, the spherical steel ball of a kind of ceramic coating, comprises steel ball body 1 and is coated at least one deck ceramic coating layer 2 of described steel ball body 1; In the present embodiment, be at least two-layer ceramic film plating layer, be preferably three layers of ceramic coating layer.The thickness of ceramic coating layer described in adjacent two layers is different, and from inside to outside, the thickness of described ceramic coating layer reduces gradually.
The material of ceramic coating layer is one or more combination in TiN, TiCN, TiALN and CrN, and the material of adjacent two layers ceramic coating layer is different; The material of every layer of ceramic coating layer is preferably the material of single variety.
Described steel ball body 1 is evenly provided with multiple protruding 101; Described protruding 101 is round column structure, and the upper surface of described projection is curved-surface structure.Be the protruding surface away from steel ball body by the upper surface of projection, relative surface is lower surface.By the curved-surface structure to the upper surface of projection in the application, make it possible to the stress reduced between protruding and ceramic coating layer and concentrate.
The outer surface of described steel ball body 1 is provided with boride layer 3; The thickness of described boride layer is greater than the total thickness of described ceramic coating layer.
The described height of protruding 101 is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.
Embodiment 2
As shown in Figure 2, the spherical steel ball of a kind of ceramic coating, comprises steel ball body 11 and is coated at least one deck ceramic coating layer of described steel ball body 11; In the present embodiment, be at least two-layer ceramic film plating layer, be respectively first layer ceramic coating layer 21 and second layer ceramic coating layer 22; Be preferably three layers of ceramic coating layer.The thickness of ceramic coating layer described in adjacent two layers is different, and from inside to outside, the thickness of described ceramic coating layer reduces gradually, and namely the thickness of first layer ceramic coating layer 21 is greater than the thickness of second layer ceramic coating layer 22.
The material of ceramic coating layer is one or more combination in TiN, TiCN, TiALN and CrN, and the material of adjacent two layers ceramic coating layer is different; The material of every layer of ceramic coating layer is preferably the material of single variety.
Described steel ball body 11 is evenly provided with multiple protruding 111; Described projection is circular cone structure, and described circular cone structure is greater than the radius of the one end away from described steel ball body close to the radius of one end of described steel ball body.
The upper surface of described projection is curved-surface structure.Be the protruding surface away from steel ball body by the upper surface of projection, relative surface is lower surface.By the curved-surface structure to the upper surface of projection in the application, make it possible to the stress reduced between protruding and ceramic coating layer and concentrate.
The outer surface of described steel ball body 11 is provided with boride layer 301; The thickness of described boride layer is greater than the total thickness of described ceramic coating layer.
The described height of protruding 111 is less than the thickness of the first layer ceramic coating layer 21 contacted with described steel ball body.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, these equivalent form of values fall into the application's appended claims limited range equally.Scope of the present utility model is by claims and equivalency thereof.
Claims (6)
1. the spherical steel ball of ceramic coating, comprises steel ball body and is coated at least one deck ceramic coating layer of described steel ball body; It is characterized in that:
Described steel ball body is evenly provided with multiple projection;
The outer surface of described steel ball body is provided with boride layer;
The height of described projection is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.
2. the spherical steel ball of ceramic coating according to claim 1, is characterized in that: the thickness of ceramic coating layer described in adjacent two layers is different, and from inside to outside, the thickness of described ceramic coating layer reduces gradually.
3. the spherical steel ball of ceramic coating according to claim 1, is characterized in that: the thickness of described boride layer is greater than the total thickness of described ceramic coating layer.
4. the spherical steel ball of ceramic coating according to claim 1, is characterized in that: described projection is round column structure or circular cone structure.
5. the spherical steel ball of ceramic coating according to claim 4, is characterized in that: described circular cone is greater than the radius of the one end away from described steel ball body close to the radius of one end of described steel ball body.
6. the spherical steel ball of the ceramic coating according to claim 1 or 4, is characterized in that: the upper surface of described projection is curved-surface structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627799.2U CN204186807U (en) | 2014-10-27 | 2014-10-27 | The spherical steel ball of a kind of ceramic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627799.2U CN204186807U (en) | 2014-10-27 | 2014-10-27 | The spherical steel ball of a kind of ceramic coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186807U true CN204186807U (en) | 2015-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420627799.2U Active CN204186807U (en) | 2014-10-27 | 2014-10-27 | The spherical steel ball of a kind of ceramic coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186807U (en) |
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2014
- 2014-10-27 CN CN201420627799.2U patent/CN204186807U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Xianggui Inventor before: Hu Guoliang |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315000 Wang Dong village, Shang Tian Town, Fenghua District, Zhejiang, Ningbo Patentee after: Power star swallow steel ball (Ningbo) Co., Ltd. Address before: 315000, No. 16, main road, Wang Dong village, Tian Tian Town, Ningbo, Zhejiang, Fenghua Patentee before: Fenghua City Golden Swallow Steel Ball Co., Ltd. |