CN208169342U - A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing - Google Patents
A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing Download PDFInfo
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- CN208169342U CN208169342U CN201820501618.XU CN201820501618U CN208169342U CN 208169342 U CN208169342 U CN 208169342U CN 201820501618 U CN201820501618 U CN 201820501618U CN 208169342 U CN208169342 U CN 208169342U
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Abstract
The utility model discloses a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearings, it is made up of powder metallurgical technique, the outer surface of bearing is provided with cricoid outer oil storage tank (1), the inner surface of bearing is provided with cricoid interior oil storage tank (2), one or more oil inlet passages (3) are offered between outer oil storage tank (1) and interior oil storage tank (2), oil inlet passage (3) is taper, the outlet of oil inlet passage (3) is greater than import, outer oil storage tank (1) is arc groove, and the inside of interior oil storage tank (2) is multistage ladder-like；After lubricant grease enters outer oil storage tank, enter interior oil storage tank (2) by oil inlet passage (3) again, to reach the inner surface of bearing, the oil content of oiliness bearing is substantially increased, the outer oil storage tank (1) is arc groove, is conducive to store lubricant grease, and the inside of interior oil storage tank (2) is multistage ladder-like, the contact area of interior oil storage tank (2) and lubricant grease is increased, reaches the oily effect of lock, improves oil content.
Description
Technical field
The utility model relates to a kind of powder metallurgy product, specifically a kind of copper and tin iron composite material power metallurgical oil-retaining axis
It holds.
Background technique
Oiliness bearing, i.e. porous bearings (Porous Bearing), using metal powder as primary raw material, oiliness bearing is
The sintered body made of powder metallurgic method, originally Porous, and have and in the fabrication process can more freely adjust
The technical advantage such as quantity, size, shape and the distribution of hole.
Oiliness bearing working principle：In non-operating state, lubricating oil is full of its hole, and when operating, axis is turned round due to friction
Fever, bearing shell thermal expansion reduce hole, and then, lubricating oil overflows, into bearing clearance.After axis stops operating, bearing shell is cold
But, hole restores, and lubricating oil is sucked back into hole again.Theoretically, although oiliness bearing is likely to form complete oil film, but absolutely mostly
Number occasion, oiliness bearing are the mixed film friction states in imperfect oil film.And oil content is the important original for influencing oil film and being formed
Cause.
Utility model content
The purpose of the utility model is to provide a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearings of high oil content.
In order to reach above-mentioned technical purpose, the technical solution of the utility model is：
A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing, is made up of powder metallurgical technique, the end of the bearing
Face is provided with outer chamfer.
The outer surface of the bearing is provided with cricoid outer oil storage tank, and the inner surface of the bearing is provided with cricoid interior storage
Oil groove, offers one or more oil inlet passages between the outer oil storage tank and interior oil storage tank, the oil inlet passage is taper, institute
The outlet for stating oil inlet passage is greater than import, and the outer oil storage tank is arc groove, and the inside of the interior oil storage tank is multistage ladder-like.
Preferably, the outer oil storage tank is corresponding with the position of interior oil storage tank.
For the utility model by oil storage tank and outer oil storage tank in being arranged, outer oil storage tank is used for the addition of lubricant grease, lubrication
After grease enters outer oil storage tank, then interior oil storage tank is entered by oil inlet passage and is substantially increased to reach the inner surface of bearing
The oil content of oiliness bearing.Oil inlet passage is set as taper, while inflow convenient for lubricant grease, plays the work reversely ended
With i.e. lubricant grease reflux is few.The outer oil storage tank is arc groove, is conducive to store lubricant grease, and the interior oil storage tank
Inside is that multistage is ladder-like, increases the contact area of interior oil storage tank and lubricant grease, achievees the effect that lock oil, improves oil-containing
Rate.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
As shown in Figure 1, a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing, is made up of powder metallurgical technique, institute
The end face for stating bearing is provided with outer chamfer 4.
The outer surface of the bearing is provided with cricoid outer oil storage tank 1, and the outer oil storage tank 1 is arc groove, outer oil storage tank 1
For the addition of lubricant grease, the outer oil storage tank 1 is arc groove, is conducive to store lubricant grease.
The inner surface of the bearing is provided with cricoid interior oil storage tank 2, and the inside of the interior oil storage tank 2 is multistage ladder
Shape, it is multistage ladder-like, the contact area of interior oil storage tank 2 and lubricant grease is increased, achievees the effect that lock oil, improves oil-containing
Rate.
The outer oil storage tank 1 is corresponding with the position of interior oil storage tank 2, offers between the outer oil storage tank 1 and interior oil storage tank 2
One or more oil inlet passages 3, the oil inlet passage 3 are taper, and the outlet of the oil inlet passage 3 is greater than import.Lubricant grease
Enter interior oil storage tank 2 into after outer oil storage tank 1, then through oil inlet passage 3, to reach the inner surface of bearing.Oil inlet passage 3 is set
It is set to taper, while inflow convenient for lubricant grease, plays the role of reversely ending, is i.e. lubricant grease reflux is few.
Above-described embodiment does not limit the utility model in any way, all by the way of equivalent substitution or equivalent transformation
The technical solution of acquisition is all fallen in the protection scope of the utility model.
Claims (3)
1. a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing, is made up of powder metallurgical technique, it is characterised in that：It is described
The outer surface of bearing is provided with cricoid outer oil storage tank（1）, the inner surface of the bearing is provided with cricoid interior oil storage tank（2）,
The outer oil storage tank（1）With interior oil storage tank（2）Between offer one or more oil inlet passages（3）, the oil inlet passage（3）For
Taper, the oil inlet passage（3）Outlet be greater than import, the outer oil storage tank（1）For arc groove, the interior oil storage tank（2）'s
Inside is multistage ladder-like.
2. a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing according to claim 1, it is characterised in that：It is described outer
Oil storage tank（1）With interior oil storage tank（2）Position it is corresponding.
3. a kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing according to claim 1, it is characterised in that：The axis
The end face held is provided with outer chamfer（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820501618.XU CN208169342U (en) | 2018-04-10 | 2018-04-10 | A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820501618.XU CN208169342U (en) | 2018-04-10 | 2018-04-10 | A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169342U true CN208169342U (en) | 2018-11-30 |
Family
ID=64374123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820501618.XU Active CN208169342U (en) | 2018-04-10 | 2018-04-10 | A kind of copper and tin iron composite material powder metallurgy oil-impregnated bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120506A (en) * | 2020-01-21 | 2020-05-08 | 河北工程大学 | Double-pivot sliding bearing |
-
2018
- 2018-04-10 CN CN201820501618.XU patent/CN208169342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120506A (en) * | 2020-01-21 | 2020-05-08 | 河北工程大学 | Double-pivot sliding bearing |
| CN111120506B (en) * | 2020-01-21 | 2021-11-23 | 河北工程大学 | Double-pivot sliding bearing |
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