CN202937649U - Antifriction layer of bearing bush - Google Patents
Antifriction layer of bearing bush Download PDFInfo
- Publication number
- CN202937649U CN202937649U CN2012204349713U CN201220434971U CN202937649U CN 202937649 U CN202937649 U CN 202937649U CN 2012204349713 U CN2012204349713 U CN 2012204349713U CN 201220434971 U CN201220434971 U CN 201220434971U CN 202937649 U CN202937649 U CN 202937649U
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- Prior art keywords
- layer
- bearing bush
- antifriction
- bearing
- antifriction layer
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- Expired - Fee Related
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- Y02T10/865—
Abstract
The utility model discloses an antifriction layer of a bearing bush, which is characterized by comprising a resin layer formed on the surface of a copper alloy basal layer of the bearing bush in a coating manner. The antifriction layer is free of lead, and allows the bearing bush to be high in bearing and antifriction and wear resisting property, and longer in service life.
Description
Technical field
The utility model relates to the sliding bearing technical field, is a kind of bearing bush antifriction layer specifically.
Background technique
Bearing shell is generally the element of protecting axle, and traditional copper alloy bearing-bush has the characteristics such as high-mechanic, highly anti-fatigue intensity, uses extensively.Copper alloy bearing-bush hardness is high, and property is hidden in itself embedding, the bite-resistant performance is poor, therefore usually need to apply one deck antifriction layer on its surface, to improve the soft energy of bearing shell.But present normally used copper alloy bearing-bush has following shortcoming: the antifriction layer that 1, uses at present generally adopts electroplates Amounts of Lead, Tin Copper ternary alloy, terne metal etc., antifriction layer material lead content also can have lasting pollution to environment up to more than 60% in using process; 2, antifriction layer is made technology such as adopting plating in production process, produces a large amount of acid, alkali and pollution of heavy metals, and human body is caused very major injury.
Therefore in order to adapt to the new demand of bearing shell development, we need to seek the bearing bush that can overcome defects.
The model utility content
The purpose of this utility model is to provide a kind of unleaded, makes bearing shell have high-mechanic, properties of antifriction and wear resistance is good, the bearing bush antifriction layer of protection.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of bearing bush antifriction layer is characterized in that: described bearing bush antifriction layer is made of resin layer, and resin layer is molded directly within above the Cuprum alloy base layer of bearing shell.
Described resin layer is molded over above the Cuprum alloy base layer by the mode that applies.
The mode of described coating is thermal spraying, stencil, spraying or lowtemperature setting.
Contain the solid lubrication material in described resin layer, resin 50%-77% wherein, surplus is the solid lubrication material.
Described resin layer is that any one material in polyamide-imides, polyimide, teflon or polyether-ether-ketone consists of, or the combination in any in polyamide-imides, polyimide, teflon or polyether-ether-ketone, described solid lubrication material is any one in molybdenum disulfide, graphite, iron oxide, antimony oxide, silica, aluminium oxide, titanium oxide, or the material of the combination in any in molybdenum disulfide, graphite, iron oxide, antimony oxide, silica, aluminium oxide, titanium oxide consists of.
The utility model compared with prior art has following beneficial effect:
(1) antifriction layer that uses of the utility model is resinous coat, and antifriction performance is good, and without oil drag the time, its friction factor is below 0.15, and the friction factor of electroplating Amounts of Lead, Tin Copper is more than 0.45.Under identical test condition, its antifriction performance of the bearing shell of the utility model application is better more than 2 times than electroplating Amounts of Lead, Tin Copper, and directly be combined with the Cuprum alloy base layer, both middle without any layer structure, directly form the bearing bush antifriction base infrastructure, both save the grid layer that anti-copper spreads, reached again the functional effect of grid layers;
(2) the utility model bearing shell has good load-carrying properties, and fatigue resistance reaches 80-100MPa, can only reach 60-70MPa and electroplate Amounts of Lead, Tin Copper.
(3) the utility model bearing shell has long working life, and when oil lubrication was arranged, when 10Kg loaded 60 minutes, its wear extent was below 0.0020g; And electroplate Amounts of Lead, Tin Copper under similarity condition, its wear extent is more than 0.04g; In the situation of the identical loading of same time, its wear extent of the utility model bearing shell only has 1/20th of plating Amounts of Lead, Tin Copper.
(4) the not leaded poisonous metal that waits in the application's antifriction layer, be conducive to health in environmental protection and production process.
Description of drawings
Fig. 1 is that the utility model is used for the structural representation on bearing shell.
Embodiment
Describe in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model bearing bush antifriction layer is made of resin layer 3, resin layer 3 be molded directly within bearing shell Cuprum alloy base layer 2 above.Resin layer 3 by the mode that applies be molded over Cuprum alloy base layer 2 above, resin layer 3 and Cuprum alloy base layer 2 formation bearing bush antifriction base infrastructures like this.The mode that applies is thermal spraying, stencil, spraying or lowtemperature setting.
Contain the solid lubrication material in resin layer 3, resin 50%-77% wherein, surplus is the solid lubrication material.Wherein resin layer 3 is any one material formation in polyamide-imides, polyimide, teflon or polyether-ether-ketone, or the combination in any in polyamide-imides, polyimide, teflon or polyether-ether-ketone, described solid lubrication material is any one in molybdenum disulfide, graphite, iron oxide, antimony oxide, silica, aluminium oxide, titanium oxide, or the material of the combination in any in molybdenum disulfide, graphite, iron oxide, antimony oxide, silica, aluminium oxide, titanium oxide consists of.
The utility model is made environmental protection bearing shell method, at first adopt the mode of sintering or cast that the Cuprum alloy base layer is compound on steel back layer 1, then materials processing is become the bearing shell shape, again by means such as thermal spraying, cold sprayings, the utility model antifriction layer is coated on Cuprum alloy base layer 2 gets final product.
The Performance Ratio of environmental protection bearing shell and comparative example (existing bearing shell) is: as following table.
In table, the fatigue resistance of antifriction layer material adopts " sapphire fatigue test board " test.Employing contains the resin layer of solid lubrication material as antifriction layer material of the present invention, and when fatigue resistance was tested at 100MPa, product was qualified.
In table, friction factor adopts " friction wear testing machine " test, and the friction factor of antifriction layer material of the present invention is 0.15, and the same terms PbSnCu antifriction layer friction system is 0.45.
Wear extent adopts " wear testing machine " test, and when antifriction layer material of the present invention loads 60 minutes at 10Kg, wear extent is only 0.002g, and the same terms PbSnCu antifriction layer wear extent is 0.04g.
Claims (3)
1. bearing bush antifriction layer, it is characterized in that: described bearing bush antifriction layer is made of resin layer, and resin layer is molded directly within above the Cuprum alloy base layer of bearing shell.
2. bearing bush antifriction layer according to claim 1, it is characterized in that: described resin layer is molded over above the Cuprum alloy base layer by the mode that applies.
3. bearing bush antifriction layer according to claim 2 is characterized in that: the mode of described coating is thermal spraying, stencil, spraying or lowtemperature setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204349713U CN202937649U (en) | 2012-08-30 | 2012-08-30 | Antifriction layer of bearing bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204349713U CN202937649U (en) | 2012-08-30 | 2012-08-30 | Antifriction layer of bearing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202937649U true CN202937649U (en) | 2013-05-15 |
Family
ID=48321890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204349713U Expired - Fee Related CN202937649U (en) | 2012-08-30 | 2012-08-30 | Antifriction layer of bearing bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202937649U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453231A (en) * | 2018-05-07 | 2019-11-15 | 南京晶质新型复合材料科技有限公司 | A kind of nanometer of copper alloy composite material surface treatment method |
| CN110985529A (en) * | 2019-12-31 | 2020-04-10 | 湖南崇德工业科技有限公司 | Polyether composite thrust bearing |
-
2012
- 2012-08-30 CN CN2012204349713U patent/CN202937649U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453231A (en) * | 2018-05-07 | 2019-11-15 | 南京晶质新型复合材料科技有限公司 | A kind of nanometer of copper alloy composite material surface treatment method |
| CN110985529A (en) * | 2019-12-31 | 2020-04-10 | 湖南崇德工业科技有限公司 | Polyether composite thrust bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |