CN204253615U - Bearing shell and be provided with the bearing of this bearing shell - Google Patents
Bearing shell and be provided with the bearing of this bearing shell Download PDFInfo
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- CN204253615U CN204253615U CN201420660214.7U CN201420660214U CN204253615U CN 204253615 U CN204253615 U CN 204253615U CN 201420660214 U CN201420660214 U CN 201420660214U CN 204253615 U CN204253615 U CN 204253615U
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- bearing shell
- rotatingshaft
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- shell sheet
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Abstract
The utility model discloses a kind of bearing shell, for matching with rotatingshaft, comprise bearing shell sheet, described bearing shell sheet is multiple, and multiple described bearing shell sheet is arranged along described rotatingshaft circumference, and described bearing shell sheet inwall has at least two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, from the curved surface that wherein radius of curvature is minimum, the sense of rotation along described rotatingshaft increases successively.Above-mentioned bearing shell is the design of vertical distinguish, and its radius of curvature is along rotatingshaft circumference, reduces gradually towards center from bearing shell sheet two ends.So, rotatingshaft can realize up time and inverse time Double-directional rotary, and bearing capacity all points to the rotating center of rotatingshaft on the direction of bearing shell distinguish, improves rotatingshaft self contering and antijamming capability, vibrates little, and running is stable.
Description
Technical field
The utility model relates to technical field of bearings, particularly relates to a kind of bearing shell and is provided with the bearing of this bearing shell.
Background technique
Bearing rises fixing in mechanical transmission course and reduces the parts of load friction factor, is other parts when producing relative movement each other on axle, is used for reducing the fixing parts of friction factor in power transmission process and retainer shaft central position.
Bearing, according to the difference of element frictional property, can be divided into rolling bearing and sliding bearing.Bearing shell be sliding bearing directly be coupling tactile part.Usually, the shape of bearing shell is the cylinder type of tiles, and internal surface is smooth.But in running, self contering ability is poor, easily vibrates, and throw is large.
Model utility content
Based on this, be necessary for bearing shell self contering ability poor, easily vibrate, problem that throw is large, a kind of stable bearing shell is provided and is provided with the bearing of this bearing shell.
A kind of bearing shell, for matching with rotatingshaft, comprise bearing shell sheet, described bearing shell sheet is multiple, and multiple described bearing shell sheet is arranged along described rotatingshaft circumference, and described bearing shell sheet inwall has at least two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, from the curved surface that wherein radius of curvature is minimum, the sense of rotation along described rotatingshaft increases successively.
Wherein in an embodiment, described bearing shell sheet inwall has three and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, along the circumference of described rotatingshaft, reduces towards center successively from described bearing shell sheet two end part.
Wherein in an embodiment, with described bearing shell sheet axial centerline for benchmark, two-part of described bearing shell sheet are symmetrical arranged.
Wherein in an embodiment, the thickness of bearing shell sheet increases towards center gradually from two ends.
Wherein in an embodiment, described bearing shell sheet inwall has two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, along the sense of rotation of described rotatingshaft, reduces towards the other end place successively from the end of described bearing shell sheet.
Wherein in an embodiment, multiple described bearing shell sheet is vertical even arrangement along described rotatingshaft circumference.
Wherein in an embodiment, described bearing shell sheet is 4 ~ 6.
Wherein in an embodiment, described bearing shell sheet inwall is provided with metal composite layer.
Wherein in an embodiment, described bearing shell sheet outer wall has ring rib.
A kind of bearing, comprise bearing support, comprise above-mentioned bearing shell, described bearing shell is installed in described bearing support.
In the utility model, bearing shell distinguish designs, and bearing shell sheet has at least two connects successively, and the curved surface that radius of curvature is different.So, rotatingshaft can realize the one-way rotation of up time or inverse time, and the Double-directional rotary of up time and inverse time, bearing capacity all points to the rotating center of rotatingshaft on the direction of bearing shell distinguish, improve rotatingshaft self contering and antijamming capability, vibrate little, running is stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bearing shell of a mode of execution;
Fig. 2 is the close-up schematic view at A place in Fig. 1.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, it can directly on another element or the element that also can exist between the two.When an element is considered to " connection " another element, it can be the element being directly connected to another element or may existing between the two simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figures 1 and 2, a kind of bearing shell 10 in this preferred embodiment, for matching with rotatingshaft 20, comprise bearing shell sheet 12, described bearing shell sheet 12 is multiple, multiple described bearing shell sheet 12 is arranged along rotatingshaft 20 circumference, and bearing shell sheet 12 inwall has at least two and is connected successively, and the curved surface that radius of curvature is different.The radius of curvature of curved surface, from the curved surface that wherein radius of curvature is minimum, the sense of rotation along rotatingshaft increases successively.
In the present embodiment, bearing shell sheet 12 roughly parabolically shape, its inwall has three and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, along the circumference of rotatingshaft, reduces towards center successively from the two end part of bearing shell sheet 12.So, bearing can realize up time and inverse time Double-directional rotary, and bearing capacity is directed upwards towards the rotating center of rotatingshaft 20 in the side of bearing shell 10 distinguish, improves rotatingshaft 20 self contering and antijamming capability, makes it vibrate little, and running is stable.
In addition, also formed and organize centripetal oil film wedge more between bearing shell 10 and rotatingshaft 20, bearing capacity is strong, enhances the rigidity of bearing.
It should be noted that, the radius of curvature of bearing shell sheet 12 external diameter and the radius of curvature of the internal diameter of spindle tile 12 can identical also can not be identical.In the present embodiment, the radius of curvature of the external diameter of bearing shell sheet 12 all reduces towards center from the end of bearing shell sheet 12 gradually in the radius of curvature of internal diameter.
It should be noted that oil film wedge is dynamic pressure oil film again, refers to, the pressure of bearing both sides when rotating is different, the side extruding lubricant oil that the lateral pressure that pressure is high is low, forms oil film wedge.
There is gap between rotatingshaft 20 and bearing hole, when axle journal is static, axle journal is in the arbitrary position in bearing hole, contacts with the bearing shell sheet 12 of bearing shell 10.Now, the wedge shape space that between two surfaces, self-assembling formation one is restrained.When axle journal starts to rotate, speed is lower, and the oil mass of bringing in bearing play is less, and at this moment the direction of bearing shell sheet 12 pairs of journal friction power is contrary with journal surface peripheral velocity, forces axle journal to be passed at frictional force effect Xia Xiang center.Along with the increase of rotating speed, the peripheral velocity of journal surface increases, and the oil mass entering wedge shape space increases, and the wedge-shaped oil film of side can produce certain kinetic pressure, is passed by axle journal to center.Now, bearing is in hydrodynamic lubrication state, and the kinetic pressure that oil film produces and external load balance each other.Surface friction drag in bearing is only the internal resistance of liquid, and friction factor is less.In addition, the centripetal oil film wedge of many groups makes rotatingshaft 20 possess good self contering stability.
Specific in the present embodiment, bearing shell sheet 12 is 4 to 6, and bearing shell sheet 12 is as the criterion with its axial centerline, and the two-part be divided into are symmetrical arranged.The thickness of bearing shell sheet 12 increases towards center gradually from two ends.Bearing shell sheet 12 and rotatingshaft 20 form the centripetal oil film wedge of 4 to 6 group, thus the kinetic pressure that wedge-shaped oil film is produced and external load balance each other, and improve the bearing capacity of bearing, and improve rigidity.In addition, wedge-shaped oil film has good absorbing performance, and bearing self contering and antijamming capability in operation process by force, are operated stable.The friction of bearing is little, and loss is little, and oil temperature is lower, and then improves the working life of bearing, when mounted, need not to scrape watt, stable performance.
Be appreciated that the quantity of bearing shell sheet 12 can be different according to the demand difference of bearing, be not limited thereto, can realize making bearing have good bearing capacity, stable object.
In this preferred embodiment, bearing shell sheet 12 is along the evenly arrangement of rotatingshaft 20 circumference.So, bearing capacity equal and opposite in direction on the direction of bearing shell 10 distinguish, and the rotating center of rotatingshaft 20 is all pointed in direction, further increasing rotatingshaft 20 self contering and antijamming capability is strong, makes it vibrate little, and running is stable.
In another embodiment, bearing shell sheet 12 inwall has two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of curved surface, along the sense of rotation of rotatingshaft, reduces towards the other end place successively from the end of bearing shell sheet 12.That is, compare in this preferred embodiment and have three and connect successively, the bearing shell sheet 12 of the curved surface that radius of curvature is different, cancels a part of bearing shell sheet 12 of its symmetry according to the sense of rotation of rotatingshaft.So, when can realize rotatingshaft single direction rotation, ensure to improve the rotating center that bearing capacity is directed upwards towards rotatingshaft 20 in the side of bearing shell 10 distinguish rotatingshaft 20 self contering and antijamming capability, make it vibrate little, running is stable.
Wherein in an embodiment, bearing shell sheet 12 inwall is provided with metal composite layer.Specific in the present embodiment, metal composite layer is babbit layer.
So, elastic metallic composite bed has that friction factor is little, thermostability is high, do not bond and the characteristic of selflubricating, reduces the generation of tile kilning phenomenon, improves the reliability of bearing.
It should be noted that, Babbitt is the low melting point bearing metal a kind of soft matrix being dispersed with grit phase.
Further, bearing shell 10 outer wall is provided with ring rib.So, reduce the positional deviation produced in the installation process of bearing shell 10 and bearing support further, increase the working life of bearing shell 10.
A kind of bearing (not shown), comprise bearing support (not shown), also comprise above-mentioned bearing shell 10, this bearing shell 10 is installed on described bearing support.
In the utility model, bearing shell 10 distinguish designs, and bearing shell sheet has at least two and connects successively, and the curved surface that radius of curvature is different.So, rotatingshaft 20 can realize up time or inverse time one-way rotation, and the Double-directional rotary of up time and inverse time, bearing capacity all points to the rotating center of rotatingshaft 20 on the direction of bearing shell 10 distinguish, improve rotatingshaft 20 self contering and antijamming capability, vibrate little, running is stable.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a bearing shell, for matching with rotatingshaft, it is characterized in that, comprise bearing shell sheet, described bearing shell sheet is multiple, multiple described bearing shell sheet is arranged along described rotatingshaft circumference, described bearing shell sheet inwall has at least two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, from the curved surface that wherein radius of curvature is minimum, the sense of rotation along described rotatingshaft increases successively.
2. bearing shell according to claim 1, it is characterized in that, described bearing shell sheet inwall has three and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, along the circumference of described rotatingshaft, reduces towards center successively from described bearing shell sheet two end part.
3. bearing shell according to claim 2, is characterized in that, with described bearing shell sheet axial centerline for benchmark, two-part of described bearing shell sheet are symmetrical arranged.
4. bearing shell according to claim 2, is characterized in that, the thickness of bearing shell sheet increases towards center gradually from two ends.
5. bearing shell according to claim 1, it is characterized in that, described bearing shell sheet inwall has two and connects successively, and the curved surface that radius of curvature is different, the radius of curvature of described curved surface, along the sense of rotation of described rotatingshaft, reduces towards the other end place successively from the end of described bearing shell sheet.
6. bearing shell according to claim 1, is characterized in that, multiple described bearing shell sheet is vertical even arrangement along described rotatingshaft circumference.
7. the bearing shell according to claim 1 ~ 6 any one, is characterized in that, described bearing shell sheet is 4 ~ 6.
8. bearing shell according to claim 1, is characterized in that, described bearing shell sheet inwall is provided with metal composite layer.
9. bearing shell according to claim 1, is characterized in that, described bearing shell sheet outer wall has ring rib.
10. a bearing, comprises bearing support, it is characterized in that, comprises the bearing shell described in claim 1 ~ 9 any one, and described bearing shell is installed in described bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660214.7U CN204253615U (en) | 2014-11-05 | 2014-11-05 | Bearing shell and be provided with the bearing of this bearing shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660214.7U CN204253615U (en) | 2014-11-05 | 2014-11-05 | Bearing shell and be provided with the bearing of this bearing shell |
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| Publication Number | Publication Date |
|---|---|
| CN204253615U true CN204253615U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420660214.7U Active CN204253615U (en) | 2014-11-05 | 2014-11-05 | Bearing shell and be provided with the bearing of this bearing shell |
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| Country | Link |
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| CN (1) | CN204253615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465170A (en) * | 2015-12-11 | 2016-04-06 | 东方电气集团东方汽轮机有限公司 | Uniform load sliding bearing |
| CN115182927A (en) * | 2022-08-03 | 2022-10-14 | 郑州机械研究所有限公司 | Sliding bearing and gear box adaptive to working conditions and selection method |
-
2014
- 2014-11-05 CN CN201420660214.7U patent/CN204253615U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465170A (en) * | 2015-12-11 | 2016-04-06 | 东方电气集团东方汽轮机有限公司 | Uniform load sliding bearing |
| CN105465170B (en) * | 2015-12-11 | 2018-10-16 | 东方电气集团东方汽轮机有限公司 | One kind carrying sliding bearing |
| CN115182927A (en) * | 2022-08-03 | 2022-10-14 | 郑州机械研究所有限公司 | Sliding bearing and gear box adaptive to working conditions and selection method |
| CN115182927B (en) * | 2022-08-03 | 2023-07-07 | 郑州机械研究所有限公司 | Self-adaptive working condition sliding bearing, gearbox and selection method |
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| GR01 | Patent grant |