CN219795863U - Powder metallurgy oil-retaining bearing - Google Patents
Powder metallurgy oil-retaining bearing Download PDFInfo
- Publication number
- CN219795863U CN219795863U CN202321056436.3U CN202321056436U CN219795863U CN 219795863 U CN219795863 U CN 219795863U CN 202321056436 U CN202321056436 U CN 202321056436U CN 219795863 U CN219795863 U CN 219795863U
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- bearing body
- bearing
- oil
- face
- annular
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 abstract description 24
- 239000010687 lubricating oil Substances 0.000 abstract description 11
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a powder metallurgy oil-containing bearing, which comprises a cylindrical bearing body, wherein the axis of the bearing body is provided with a shaft hole, annular trapezoid grooves concentric with the shaft hole are formed in the upper end face and the lower end face of the bearing body, a plurality of oil storage through holes are connected between the annular trapezoid grooves of the upper end face of the bearing body and the annular trapezoid grooves of the lower end face of the bearing body, and the plurality of oil storage through holes are uniformly arranged around the bearing body. The annular trapezoid groove can store lubricating oil, reduce friction surfaces of bearings and other parts, and facilitate generation of a layer of oil film on the friction surfaces. Meanwhile, the oil storage through holes between the two annular trapezoid grooves can enable lubricating oil to uniformly and fully permeate the bearing body, so that the oil content of the bearing body is improved, and the service life of the oil-containing bearing is prolonged.
Description
Technical Field
The utility model relates to the technical field of powder metallurgy, in particular to a powder metallurgy containing bearing.
Background
The oil-impregnated bearing is a porous bearing, which is made of metal powder as a main raw material, is a sintered body manufactured by a powder metallurgy method, is porous, and has the technical advantages of freely adjusting the number, size, shape, distribution and the like of pores in the manufacturing process. In the running process, the oil-containing bearing is heated due to friction, so that the pores become smaller, and lubricating oil flows out to enter bearing gaps; after the lubricating oil stops working, the lubricating oil is cooled, the pores are gradually recovered, and the lubricating oil is sucked back into the pores. However, due to the centrifugal force, part of lubricating oil is separated from the bearing, so that the oil content of the oil-containing bearing is reduced, the transmission efficiency of the bearing is affected, and the service life of the oil-containing bearing is shortened.
Disclosure of Invention
The utility model aims to provide a powder metallurgy oil-retaining bearing, which can reduce friction between the bearing and other parts and prolong the service life of the oil-retaining bearing.
In order to achieve the technical purpose, the technical scheme of the utility model is as follows:
the utility model provides a powder metallurgy oiliness bearing, includes cylindric bearing body, the bearing body axle center has the shaft hole, the up end of bearing body and lower terminal surface all are provided with the annular trapezoidal groove with the shaft hole is concentric, be connected with a plurality of oil storage through-holes between the annular trapezoidal groove of bearing body up end and the annular trapezoidal groove of bearing body lower terminal surface, a plurality of oil storage through-holes evenly arrange on the bearing body.
The distance between the annular trapezoid groove and the inner edge of the bearing body is larger than the distance between the annular trapezoid groove and the outer edge of the bearing body.
The annular trapezoid groove of the upper end face of the bearing body and the annular trapezoid groove of the lower end face of the bearing body are symmetrically arranged.
The included angles between the two sides of the annular trapezoid groove and the end face of the bearing body are 60 degrees.
And chamfers are arranged on the outer edge and the inner edge of the bearing body.
The annular trapezoid groove can store lubricating oil, reduce friction surfaces of bearings and other parts, and facilitate generation of a layer of oil film on the friction surfaces. Meanwhile, the oil storage through holes between the two annular trapezoid grooves can enable lubricating oil to uniformly and fully permeate the bearing body, so that the oil content of the bearing body is improved, and the service life of the oil-containing bearing is prolonged.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic view of a partial structure at a in fig. 1 according to the present utility model.
Detailed Description
As shown in fig. 1, a powder metallurgy oil-retaining bearing comprises a cylindrical bearing body 1, the axis of the bearing body 1 is provided with a shaft hole 2, the upper end face and the lower end face of the bearing body 1 are both provided with annular trapezoid grooves 3 coaxial and concentric with the shaft hole 2, the annular trapezoid grooves 3 of the upper end face of the bearing body 1 and the annular trapezoid grooves 3 of the lower end face of the bearing body 1 are symmetrically arranged, and the distance between the annular trapezoid grooves 3 and the inner edge of the bearing body 1 is larger than the distance between the annular trapezoid grooves 3 and the outer edge of the bearing body 1 (as shown in fig. 1, the distance between the annular trapezoid grooves 3 and the shaft hole 2 is larger than the distance between the annular trapezoid grooves 3 and the outer edge of the bearing body 1).
As shown in fig. 2, the included angle between the two sides 6, 7 of the annular trapezoid groove 3 and the end face of the bearing body 1 is 60 degrees.
A plurality of oil storage through holes 4 are connected between the annular trapezoid groove 3 on the upper end surface of the bearing body 1 and the annular trapezoid groove 3 on the lower end surface of the bearing body 1, and the plurality of oil storage through holes 4 are uniformly distributed around the bearing body 1 (a plurality of oil storage through holes 4 are uniformly arranged along the circumferential direction of the annular trapezoid groove 3).
The outer edge and the inner edge of the bearing body 1 are provided with chamfers 5.
The annular trapezoid groove can store lubricating oil, reduce friction surfaces of bearings and other parts, and facilitate generation of a layer of oil film on the friction surfaces. Meanwhile, the oil storage through holes between the two annular trapezoid grooves can enable lubricating oil to uniformly and fully permeate the bearing body, so that the oil content of the bearing body is improved, and the service life of the oil-containing bearing is prolonged.
The above embodiments do not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.
Claims (5)
1. A powder metallurgy oil-impregnated bearing, characterized in that: the novel bearing comprises a cylindrical bearing body, wherein a shaft hole is formed in the axis of the bearing body, annular trapezoid grooves concentric with the shaft hole are formed in the upper end face and the lower end face of the bearing body, a plurality of oil storage through holes are connected between the annular trapezoid grooves of the upper end face of the bearing body and the annular trapezoid grooves of the lower end face of the bearing body, and the oil storage through holes are uniformly distributed on the bearing body.
2. A powder metallurgy oil impregnated bearing according to claim 1, wherein: the distance between the annular trapezoid groove and the inner edge of the bearing body is larger than the distance between the annular trapezoid groove and the outer edge of the bearing body.
3. A powder metallurgy oil impregnated bearing according to claim 1, wherein: the annular trapezoid groove of the upper end face of the bearing body and the annular trapezoid groove of the lower end face of the bearing body are symmetrically arranged.
4. A powder metallurgy oil impregnated bearing according to claim 1, wherein: the included angles between the two sides of the annular trapezoid groove and the end face of the bearing body are 60 degrees.
5. A powder metallurgy oil impregnated bearing according to claim 1, wherein: and chamfers are arranged on the outer edge and the inner edge of the bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321056436.3U CN219795863U (en) | 2023-05-06 | 2023-05-06 | Powder metallurgy oil-retaining bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321056436.3U CN219795863U (en) | 2023-05-06 | 2023-05-06 | Powder metallurgy oil-retaining bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795863U true CN219795863U (en) | 2023-10-03 |
Family
ID=88181684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321056436.3U Active CN219795863U (en) | 2023-05-06 | 2023-05-06 | Powder metallurgy oil-retaining bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795863U (en) |
-
2023
- 2023-05-06 CN CN202321056436.3U patent/CN219795863U/en active Active
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