CN204200844U - A kind of coating structure of spherical steel ball - Google Patents
A kind of coating structure of spherical steel ball Download PDFInfo
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- CN204200844U CN204200844U CN201420626663.XU CN201420626663U CN204200844U CN 204200844 U CN204200844 U CN 204200844U CN 201420626663 U CN201420626663 U CN 201420626663U CN 204200844 U CN204200844 U CN 204200844U
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- steel ball
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- ball body
- ceramic coating
- pit
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Abstract
The utility model relates to a kind of coating structure of spherical steel ball, comprises steel ball body and is coated at least two-layer ceramic film plating layer of described steel ball body; Described steel ball body is evenly provided with multiple pit; The bottom surface of described pit is hemispherical dome structure; The outer surface of the first layer ceramic coating layer connected with described steel ball body, is provided with depression in the position of described pit; The outer surface of described steel ball body is provided with boride layer; The degree of depth of described pit 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 a kind of coating structure of spherical steel ball.
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 spherical 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:
A coating structure for spherical steel ball, comprises steel ball body and is coated at least two-layer ceramic film plating layer of described steel ball body;
Described steel ball body is evenly provided with multiple pit; The bottom surface of described pit is hemispherical dome structure;
The outer surface of the first layer ceramic coating layer connected with described steel ball body, is provided with depression in the position relative with described pit;
The outer surface of described steel ball body is provided with boride layer;
The degree of depth of described pit 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 pit is round column structure or circular cone structure.
Described circular cone is, the radius close to one end of described steel ball body surface is greater than the radius of the one end close to described pit bottom surface.
The radius of described hemisphere face structure is identical close to the radius of one end of bottom surface with described pit.
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.
3, the outer surface of the ceramic coating layer at first layer is provided with sunk structure, makes the combination of the ceramic coating layer of the second layer and first layer ceramic coating more fastening, effectively prevent plated film to come off problem.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of the spherical 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, a kind of coating structure of spherical steel ball, comprises steel ball body 1 and is coated at least two layers of ceramic coating layer of described steel ball body 1; In the present embodiment, three layers of ceramic coating layer are preferably.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 pit 101; Described pit 101 is round column structure, and the bottom surface of described pit 101 is hemispherical dome structure 102; The radius of described hemisphere face structure is identical close to the radius of one end of bottom surface with described pit.
The outer surface of the first layer ceramic coating layer 21 connected with described steel ball body 1, is being provided with depression 211 with the relative position of described pit; By this structure, second layer ceramic coating layer 22 has part material and enters in depression 211, improves the conjugation of ceramic coating layer.
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 degree of depth of described pit 101 is less than the thickness of the first layer ceramic coating layer 21 contacted with described steel ball body.By the hemispherical dome structure to pit bottom surface in the application, make it possible to the stress reduced between pit and ceramic coating layer and concentrate.
Embodiment 2
A coating structure for spherical steel ball, comprises steel ball body and is coated at least two layers of ceramic coating layer of described steel ball body; In the present embodiment, three layers of ceramic coating layer are preferably.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 is evenly provided with multiple pit; Described pit is circular cone structure, and described circular cone is, the radius close to one end of described steel ball body surface is greater than the radius of the one end close to described pit bottom surface.The bottom surface of described pit is hemispherical dome structure; The radius of described hemisphere face structure is identical close to the radius of one end of bottom surface with described pit.
The outer surface of the first layer ceramic coating layer connected with described steel ball body, is provided with depression in the position relative with described pit; By this structure, second layer ceramic coating layer has part material and enters in depression, improves the conjugation of ceramic coating layer.
The outer surface of described steel ball body is provided with boride layer; The thickness of described boride layer is greater than the total thickness of described ceramic coating layer.
The degree of depth of described pit is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.By the hemispherical dome structure to pit bottom surface in the application, make it possible to the stress reduced between pit and ceramic coating layer and concentrate.
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. a coating structure for spherical steel ball, comprises steel ball body and is coated at least two-layer ceramic film plating layer of described steel ball body; It is characterized in that:
Described steel ball body is evenly provided with multiple pit; The bottom surface of described pit is hemispherical dome structure;
The outer surface of the first layer ceramic coating layer connected with described steel ball body, is provided with depression in the position relative with described pit;
The outer surface of described steel ball body is provided with boride layer;
The degree of depth of described pit is less than the thickness of the first layer ceramic coating layer contacted with described steel ball body.
2. the coating structure of spherical steel ball 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 coating structure of spherical steel ball 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 coating structure of spherical steel ball according to claim 1, is characterized in that: described pit is round column structure or circular cone structure.
5. the coating structure of spherical steel ball according to claim 4, is characterized in that: described circular cone is, the radius close to one end of described steel ball body surface is greater than the radius of the one end close to described pit bottom surface.
6. the coating structure of spherical steel ball according to claim 1, is characterized in that: the radius of described hemisphere face structure is identical close to the radius of one end of bottom surface with described pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626663.XU CN204200844U (en) | 2014-10-27 | 2014-10-27 | A kind of coating structure of spherical steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626663.XU CN204200844U (en) | 2014-10-27 | 2014-10-27 | A kind of coating structure of spherical steel ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200844U true CN204200844U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420626663.XU Active CN204200844U (en) | 2014-10-27 | 2014-10-27 | A kind of coating structure of spherical steel ball |
Country Status (1)
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| CN (1) | CN204200844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950548A (en) * | 2018-08-10 | 2018-12-07 | 成都极星等离子科技有限公司 | Chromium-nitridation chromium composite coat and its application in nano combined cutter |
| CN110144565A (en) * | 2018-08-22 | 2019-08-20 | 哈尔滨工业大学 | A kind of batch prepares the method and apparatus of accurate spherical rolling body surface covering |
-
2014
- 2014-10-27 CN CN201420626663.XU patent/CN204200844U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950548A (en) * | 2018-08-10 | 2018-12-07 | 成都极星等离子科技有限公司 | Chromium-nitridation chromium composite coat and its application in nano combined cutter |
| CN108950548B (en) * | 2018-08-10 | 2020-08-25 | 成都极星等离子科技有限公司 | Chromium-chromium nitride composite coating and application thereof in nano composite cutter |
| CN110144565A (en) * | 2018-08-22 | 2019-08-20 | 哈尔滨工业大学 | A kind of batch prepares the method and apparatus of accurate spherical rolling body surface covering |
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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. |