CN203214615U - Bearing bush - Google Patents
Bearing bush Download PDFInfo
- Publication number
- CN203214615U CN203214615U CN 201320090417 CN201320090417U CN203214615U CN 203214615 U CN203214615 U CN 203214615U CN 201320090417 CN201320090417 CN 201320090417 CN 201320090417 U CN201320090417 U CN 201320090417U CN 203214615 U CN203214615 U CN 203214615U
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- bearing bush
- mos2
- bearing shell
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Abstract
The utility model provides a bearing bush, and solves the problems that the bearing bush in the prior art frequently generates an abrasion and bush burning phenomenon. The bearing bush comprises a steel backing layer and a spraying coating layer fixedly connected with the steel backing layer, wherein the spraying coating layer is of a layer-shaped structure and comprises a PI resin layer and a MoS2 layer which are fixedly connected. The bearing bush provided by the utility model has the advantages that the dry-grinding resistance property of the bearing bush is effectively improved through the MoS2 layer fixedly arranged on the steel backing layer, the bearing bush can continuously carry out dry grinding for two hours under an oil-less state, and an invalid condition of the bearing bush is not generated; in addition, the melting point of MoS2 can achieve 1,185 DEG C, and the born pressure of the spraying coating layer can achieve more than 80 MPa, so that the bearing bush can bear high temperature, high pressure and high load, and finally, the friction coefficient of the MoS2 is low and is about 0.05-0.09; a MoS2 protective film is formed on a crank shaft in use, so that the friction coefficient between the crank shaft and the bearing bush is lower, and the abrasive resistance of the bearing bush is improved.
Description
Technical field
The utility model relates to the bearing shell technical field, refers to a kind of bearing shell that has better wear-resisting property, the tile kilning phenomenon can not take place especially.
Background technique
Bearing shell is sliding bearing and the tactile part that is coupling, and is very smooth, generally makes with high-abrasive materials such as bronze, antifriction alloys, under special circumstances, can make with timber, plastics or rubber, also cries on " axle bush ", is shaped as the semi-cylindrical of watt shape.
During sliding bearing work, require to have the very thin oil film lubricate of one deck between bearing shell and the rotating shaft.If insufficient lubrication just exists directly between bearing shell and the rotating shaft and rubs, friction can produce very high temperature, and the high temperature that the direct friction generation takes place still is enough to it is burnt out.Bearing shell also may factor cause tile kilning because load is excessive, temperature is too high, there is impurity in lubricant oil or viscosity is unusual etc., and sliding bearing has just damaged behind the tile kilning.
And along with constantly soaring, the overload of engine power and the problem of operating aspect, even if existing bearing shell is electroplate with anti-attrition layer at the steel back layer internal surface, the situation of seize tile kilning can take place also.According to domestic and international statistics, bearing shell remove install and use improper beyond, the failure mode more than 95.90% causes because of high temperature, because high temperature causes low-melting constituent element to melt or is softening, bearing shell produced lost efficacy.
The model utility content
The utility model proposes a kind of bearing shell, solved that the prior art intermediate bushing often weares and teares, the problem of tile kilning phenomenon.
The technical solution of the utility model is achieved in that a kind of bearing shell, comprises steel back layer, also comprises the sprayfused coating of fixedlying connected with described steel back layer, and described sprayfused coating is stratiform structure, comprises fixedly connected PI resin layer and MoS2 layer.
As to improvement of the technical scheme, described sprayfused coating also comprises the PAR lubricant coating of fixedlying connected with described MoS2 layer, and described MoS2 layer is between described PI resin layer and described PAR lubricant coating.
As to further improvement in the technical proposal, also be provided with alloy-layer between described steel back layer and the described sprayfused coating, described PI resin layer contacts with described alloy-layer.
As preferred embodiment a kind of, described alloy-layer is aluminium alloy layer.
As another preferred embodiment, described alloy-layer is the copper lead alloy layer.
After having adopted technique scheme, the beneficial effects of the utility model are: owing to fixedly installed the MoS2 layer by the PI resin layer on steel back layer, it is good solid lubricant, anti-dry grinding performance is good, bearing shell is under the state of oil starvation, can dry grind continuously 2 hours, failure conditions does not appear in bearing shell; The fusing point of MoS2 can reach 1185 degree, and the pressure that sprayfused coating is born can reach more than 80 MPas, makes bearing shell can bear high temperature, high pressure, high loading; The MoS2 friction factor is low; greatly about (friction factor between general copper and the iron is about 0.20) between 0.05～0.09, and the MoS2 layer can form the protective film of one deck MoS2 at bent axle when using; friction factor between bent axle and the bearing shell is even lower, improves wear-resistance of bearing pad.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model embodiment one cross-sectional schematic;
Fig. 2 is the utility model embodiment two cross-sectional schematic;
Fig. 3 is the cross-sectional schematic of sprayfused coating among Fig. 1 and Fig. 2;
Among the figure: the 1-steel back layer; The 2-alloy-layer; The 3-sprayfused coating; The 31-PI resin layer; The 32-MoS2 layer; The 33-PAR lubricant coating.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one:
As shown in Figure 1, be a kind of embodiment of the utility model bearing shell, it at first comprises a steel back layer 1, is provided with the sprayfused coating 3 of fixedlying connected with it at this steel back layer 1.
As shown in Figure 3, be the cross-sectional schematic of sprayfused coating 3, its integral body is stratiform structure, comprises fixedly connected PI resin layer 31 and MoS2 layer 32, and wherein, PI resin layer 31 is contacted with steel back layer 1; On MoS2 layer 32, also can spray PAR lubricant coating 33, MoS2 layer 32 can be fixed between PI resin layer 31 and the PAR lubricant coating 33 like this.
Embodiment two:
As shown in Figure 2, be the another kind of embodiment of the utility model bearing shell, itself and difference embodiment illustrated in fig. 1 are: this embodiment has fixedly installed alloy-layer 2 between steel back layer 1 and sprayfused coating 3, PI resin layer 31 directly contacts with alloy-layer 2.And the alloy-layer 2 among this embodiment can be selected a kind of in comparatively common aluminium alloy layer or the copper lead alloy layer for use.
Identical among all the other structures among this embodiment and Fig. 1 do not repeat them here.
This bearing shell has fixedly installed the MoS2 layer at steel back layer 1, it is good solid lubricant, anti-dry grinding performance is good, bearing shell is under the state of oil starvation, can dry grind continuously 2 hours, failure conditions does not appear in bearing shell, and the fusing point of MoS2 can reach 1185 degree, the pressure that sprayfused coating is born can reach more than 80 MPas, makes bearing shell can bear high temperature, high pressure, high loading; The MoS2 friction factor is low; greatly about (friction factor between general copper and the iron is about 0.20) between 0.05～0.09, and the MoS2 layer can form the protective film of one deck MoS2 at bent axle when using; friction factor between bent axle and the bearing shell is even lower, improves wear-resistance of bearing pad.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. a bearing shell comprises steel back layer, it is characterized in that: also comprise the sprayfused coating of fixedlying connected with described steel back layer, described sprayfused coating is stratiform structure, comprises fixedly connected PI resin layer and MoS2 layer.
2. bearing shell as claimed in claim 1, it is characterized in that: described sprayfused coating also comprises the PAR lubricant coating of fixedlying connected with described MoS2 layer, described MoS2 layer is between described PI resin layer and described PAR lubricant coating.
3. bearing shell as claimed in claim 1 or 2, it is characterized in that: also be provided with alloy-layer between described steel back layer and the described sprayfused coating, described PI resin layer contacts with described alloy-layer.
4. bearing shell as claimed in claim 3, it is characterized in that: described alloy-layer is aluminium alloy layer.
5. bearing shell as claimed in claim 3, it is characterized in that: described alloy-layer is the copper lead alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090417 CN203214615U (en) | 2013-02-27 | 2013-02-27 | Bearing bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320090417 CN203214615U (en) | 2013-02-27 | 2013-02-27 | Bearing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214615U true CN203214615U (en) | 2013-09-25 |
Family
ID=49204158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320090417 Expired - Fee Related CN203214615U (en) | 2013-02-27 | 2013-02-27 | Bearing bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122937A (en) * | 2013-02-27 | 2013-05-29 | 烟台春生滑动轴承有限公司 | Bearing bush and process thereof for spraying MoS2 on alloy layer |
-
2013
- 2013-02-27 CN CN 201320090417 patent/CN203214615U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122937A (en) * | 2013-02-27 | 2013-05-29 | 烟台春生滑动轴承有限公司 | Bearing bush and process thereof for spraying MoS2 on alloy layer |
| CN103122937B (en) * | 2013-02-27 | 2016-04-20 | 烟台春生滑动轴承有限公司 | A kind of bearing shell and alloy-layer spraying MoS2 technique thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140227 |