CN201794926U - Bearing bush with oil return grooves - Google Patents
Bearing bush with oil return grooves Download PDFInfo
- Publication number
- CN201794926U CN201794926U CN201020551335XU CN201020551335U CN201794926U CN 201794926 U CN201794926 U CN 201794926U CN 201020551335X U CN201020551335X U CN 201020551335XU CN 201020551335 U CN201020551335 U CN 201020551335U CN 201794926 U CN201794926 U CN 201794926U
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- China
- Prior art keywords
- oil
- groove
- bearing shell
- grooves
- feed tank
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Abstract
The utility model provides a bearing bush with oil return grooves. A circular oil feed groove (1) is formed on the inner wall of the bearing bush; an oil inlet hole (2) is formed on the oil feed groove (1); oil distribution grooves (3) are formed at two sides of the oil feed groove (1); and one end of each oil distribution groove (3) is connected with the oil feed groove (1), and the other end of each oil distribution groove is connected with one oil return groove (4). The tail ends of the oil distribution grooves (3) positioned at a same side of the oil feed groove (1) are linked through the oil return grooves (4), so that oil in the oil distribution groove can flow, and oil dirty and debris are kept from depositing in the oil distribution grooves; moreover, the sum of pore diameters of all oil inlet holes is larger than that of pore diameters of oil outlet holes, so that the oil pressure in the oil distribution grooves can be effectively generated to facilitate flowing and permeating of the oil.
Description
Technical field
The utility model relates to a kind of bearing shell of taking back oil groove, belongs to the optimisation technique of bearing shell.
Background technique
Existing bearing shell inwall all is smooth usually, and some are also arranged is to be provided with oil groove on inwall, is used to improve lubricating ability.Deficiency is because the gap between axle and the bearing shell is very little, and that lubricant oil is stickiness is higher, mobile relatively poor liquid, though also used the fuel feeding design of some pressurizations, can not ensure well that still the bearing shell inwall forms uniform oil film.
A kind of bearing shell is disclosed in application number is 200880005520.4 patent document, have forward and reverse acting spiral groove on the inner circumferential surface of being formed at, advantage is that oil can flow along the groove of spiral, and sense of rotation regardless of the axle in the sliding bearing, oil can both flow smooth-goingly, and less than one is to adopt spiral grooves, and oil circuit is longer, less with the tie point of main oil groove, the end that the oil in the main oil groove will flow to spiral grooves needs long time and bigger pressure; The 2nd, because the end of spiral grooves is open, can not set up bigger oil pressure, be not easy to form oil film.
A kind of Sliding bush is disclosed in the patent No. is the patent document of ZL200410002470.8, on the bearing shell wall, be provided with a lot of oilholes, advantage is that the distribution of oilhole has reduced the area of contact of bearing shell with axle, thereby reduced surface friction drag, deficiency is that oilhole is wanted oil-filled needs long time and pressure.
A kind of bearing shell is disclosed in application number is 03225339.7 patent document, become the groove of space arrangement in base layer surface boring, between the two adjacent grooves is convex shoulder, antifriction layer and nickel grid are concave-convex shape, but advantage is in the recess oil storage, has reduced the area of contact of bearing shell with axle, has reduced surface friction drag, deficiency is not provide concrete fuel feeding scheme, does not more give the fuel-displaced detailed protocol that enters recess.
A kind of internal combustion engine bearing with minute oil groove is disclosed in my application number is 201020520919.0 patent document, replace the branch oil groove of align ends sealing in main oil groove both sides, advantage is to form uniform oil film easily between bearing shell and axle, deficiency is that axle is in the process of motion, the chip that produces, the end that grease can accumulate in the branch oil groove, long operational time divides the effect of oil groove to weaken.
Therefore, it is freely suitable, lubricated good to need to seek a kind of fuel feeding, can prevent the bearing shell of chip, grease deposition again.
Summary of the invention
It is freely suitable, lubricated good that the purpose of this utility model provides a kind of fuel feeding, and can will divide the chip of oil groove end, the bearing shell that grease is in time discharged by flowing of oil.
The technical solution of the utility model is: a kind of bearing shell of taking back oil groove, the oil-feed tank 1 of annular is set at the bearing shell inwall, oil-feed tank 1 is provided with oil inlet hole 2, be provided with branch oil groove 3 in oil-feed tank 1 both sides, divide an end of oil groove 3 to be connected with oil-feed tank 1, divide the other end of oil groove 3 to be connected with oil-return groove 4, the end that described oil-return groove 4 will be positioned at all branch oil grooves 3 of oil-feed tank 1 homonymy links up.
Described oil-return groove 4 is provided with spill port 5.
The aperture addition of all spill ports 5 less than the aperture of all oil inlet holes 2 and.
The beneficial effects of the utility model are:
1, oil-return groove is set on bearing shell, the branch oil groove that will be positioned at the oil-feed tank homonymy links up, and the oil of score oil groove can be flowed, and avoids grease, chip in a minute oil groove deposition;
2, the aperture of all oil inlet holes and greater than the aperture of all oil outlets and, can set up the oil pressure of branch oil groove effectively, be beneficial to flowing and infiltration of oil.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is that the utility model bearing shell inwall launches schematic representation;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 is an embodiment of the present utility model.
Among the figure 1, oil-feed tank, 2, oil inlet hole, 3, divide oil groove, 4, oil-return groove, 5, spill port.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of bearing shell of taking back oil groove, the oil-feed tank 1 of annular is set at the bearing shell inwall, oil-feed tank 1 is provided with oil inlet hole 2, be provided with branch oil groove 3 in oil-feed tank 1 both sides, divide an end of oil groove 3 to be connected with oil-feed tank 1, divide the other end of oil groove 3 to be connected with oil-return groove 4, the end that described oil-return groove 4 will be positioned at all branch oil grooves 3 of oil-feed tank 1 homonymy links up.
Described oil-return groove 4 is provided with spill port 5.
The aperture addition of all spill ports 5 less than the aperture of all oil inlet holes 2 and.
The overall structure of bearing shell can be airtight loop configuration, also can be made up of two semicircles.
In the application of reality, as shown in Figure 2, oil-feed tank 1 can be located in the middle of the inwall of bearing shell, divide oil groove 3 to be staggered in oil-feed tank 1 both sides, at this moment, need two parallel oil-return grooves 4 be set at the bearing shell inwall, the branch oil groove 3 that will be positioned at oil-feed tank 1 both sides respectively links up; As shown in Figure 4, also can near the position that connects edge an oil-feed tank 1 be set at the inwall of bearing shell, at this moment the same side of dividing oil groove 3 all to be located at oil-feed tank 1, only need be provided with an oil-return groove, divides the end of oil groove 3 to link up all; Two parallel oil-feed tanks 1 can also be set in the submarginal position of the inwall of bearing shell, divide oil groove 3 one ends to be connected with oil-feed tank 1, the other end extends in the middle of the bearing shell inwall, at this moment, only an oil-return groove 4 need be set in the neutral position of bearing shell inwall, just all branch oil grooves 3 can be coupled together.
The foregoing description only is to be used for interpretation purposes of the present utility model; and be not to be to restriction of the present utility model, those skilled in the art are in essential scope of the present utility model; make various variations or alternative, also should belong to protection category of the present utility model.
Claims (3)
1. bearing shell of taking back oil groove, the oil-feed tank (1) of annular is set on bearing shell, oil-feed tank (1) is provided with oil inlet hole (2), be provided with branch oil groove (3) in oil-feed tank (1) both sides, divide an end of oil groove (3) to be connected with oil-feed tank (1), it is characterized in that: divide the other end of oil groove (3) to be connected with oil-return groove (4), the end that described oil-return groove (4) will be positioned at all branch oil grooves (3) of oil-feed tank (1) homonymy links up.
2. the bearing shell of taking back oil groove according to claim 1 is characterized in that: described oil-return groove (4) is provided with spill port (5).
3. the bearing shell of taking back oil groove according to claim 1 is characterized in that: the aperture addition of all spill ports (5) less than the aperture of all oil inlet holes (2) and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020551335XU CN201794926U (en) | 2010-09-29 | 2010-09-29 | Bearing bush with oil return grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020551335XU CN201794926U (en) | 2010-09-29 | 2010-09-29 | Bearing bush with oil return grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794926U true CN201794926U (en) | 2011-04-13 |
Family
ID=43849835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020551335XU Expired - Fee Related CN201794926U (en) | 2010-09-29 | 2010-09-29 | Bearing bush with oil return grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968078A (en) * | 2010-09-29 | 2011-02-09 | 李耀强 | Bearing bush with oil return groove |
-
2010
- 2010-09-29 CN CN201020551335XU patent/CN201794926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968078A (en) * | 2010-09-29 | 2011-02-09 | 李耀强 | Bearing bush with oil return groove |
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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: 20110413 Termination date: 20120929 |