CN101949411A - Internal-combustion engine bush with oil distribution grooves - Google Patents
Internal-combustion engine bush with oil distribution grooves Download PDFInfo
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- CN101949411A CN101949411A CN 201010275211 CN201010275211A CN101949411A CN 101949411 A CN101949411 A CN 101949411A CN 201010275211 CN201010275211 CN 201010275211 CN 201010275211 A CN201010275211 A CN 201010275211A CN 101949411 A CN101949411 A CN 101949411A
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- oil groove
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Abstract
The invention discloses an internal-combustion engine bush with oil distribution grooves. An annular main oil groove 1 is formed on the central line of the bush, the main oil groove 1 is provided with an oil hole 2, two sides of the main oil groove 1 are provided with oil distribution grooves 3, one end of each oil distribution groove 3 is connected with the main oil groove 1, and the other end of the oil distribution groove 3 is closed so that oil pressures in the oil distribution grooves 3 are increased and the oil can form an oil film more easily between the bush and a shaft. The oil distribution grooves 3 are alternately distributed on two sides of the main oil groove 1, and the oil distribution grooves 3 positioned on the same side of the main oil groove 1 are parallel and distributed in equal distance, so the oil pressures of the oil distribution grooves 3 are approximated no matter the shaft rotates positively or negatively, and the contact face between the bush and the shaft can form the uniform oil film is ensured.
Description
Technical field
The present invention relates to a kind of internal combustion engine bearing, belong to the optimisation technique of I. C. engine crankshaft and connecting rod bearing shell with minute oil groove.
Background technique
The bearing shell that the crankshaft-and-connecting-rod of existing internal-combustion engine uses, the inwall of bearing shell all is smooth usually, 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.
Therefore, a kind of surface friction drag of needs searching is low, fuel feeding is freely suitable, lubricated good internal combustion engine bearing.
Summary of the invention
The purpose of this invention is to provide a kind of internal combustion engine bearing with minute oil groove, the oil of main oil groove can flow to the branch oil groove apace, and can form higher oil pressure, thereby can form oil film apace on the bearing shell surface.
Technological scheme of the present invention is: a kind of internal combustion engine bearing with minute oil groove on the center line of bearing shell, is provided with the main oil groove 1 of an annular, main oil groove 1 is provided with oilhole 2, be provided with branch oil groove 3 in main oil groove 1 both sides, divide an end of oil groove 3 to be connected, the other end sealing with main oil groove 1.
More than the edge 1MM of the closed end of described minute oil groove 3 apart from bearing shell.
Angle between described minute oil groove 3 and the main oil groove 1 is spent between 90 degree 30, and the best is 45 degree.
All branch oil grooves 3 that are positioned at described main oil groove 1 homonymy are parallel.
Distance between all adjacent branch oil grooves 3 of described main oil groove 1 homonymy is identical.
The invention has the beneficial effects as follows:
1, in main oil groove both sides the branch oil groove is set, the bearing shell and the area of contact of axle are reduced, surface friction drag also reduces;
2, owing to divide the oil groove endcapped, make oil pressure increase, thereby make oil more easily between bearing shell and axle, form oil film;
3, because the branch oil groove is to be alternately distributed in main oil groove both sides, and formation certain included angle, and, the branch oil groove that is positioned at main oil groove the same side is parallel and is equally spaced, therefore, no matter axle is forward or counterrotating, makes each divide the oil pressure of oil groove approaching, thereby has guaranteed that the surface of contact between bearing shell and the axle can form uniform oil film.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is main oil groove of the present invention and divides the arrange schematic representation of oil groove on the bearing shell inwall;
Fig. 3 is a partial sectional view.
Among the figure 1, main oil groove, 2, oilhole, 3, divide oil groove.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of internal combustion engine bearing with minute oil groove is on the center line of bearing shell, the main oil groove 1 of an annular is set, and main oil groove is provided with oilhole 2, is provided with branch oil groove 3 in main oil groove 1 both sides, divide an end of oil groove 3 to be connected, the other end sealing with main oil groove 1.
More than the edge 1MM of the closed end of described minute oil groove 3 apart from bearing shell.
Angle between described minute oil groove 3 and the main oil groove 1 is spent between 90 degree 30, and the best is 45 degree.
All branch oil grooves 3 that are positioned at described main oil groove 1 homonymy are parallel.
Distance between all adjacent branch oil grooves 3 of described main oil groove 1 homonymy is identical.
The overall structure of bearing shell can be airtight loop configuration, also can be made up of two semicircles.
Be parallel and be equally spaced owing to be positioned at the branch oil groove of main oil groove the same side, make the oil pressure of branch oil groove close, thereby around axle, formed oil film with counterpressure, make axle when motion, axle can directly not contact with bearing shell, but is suspended on the oil film, therefore, frictional force significantly reduces.
Bearing shell of the present invention not only can be widely used in bent axle, the connecting rod of internal-combustion engine, improve the lubrication effect of bent axle, connecting rod, the resistance of reducing friction increases the service life, also can be applicable on other machinery that need bearing shell, have the effect of reducing friction resistance and increasing the service life equally.
The foregoing description only is to be used for interpretation purposes of the present invention, and is not to be limitation of the present invention, and those skilled in the art in essential scope of the present invention, make various variations or alternative, also should belong to protection category of the present invention.
Claims (6)
1. the internal combustion engine bearing with minute oil groove on the center line of bearing shell, is provided with the main oil groove (1) of an annular, main oil groove is provided with oilhole (2), be provided with branch oil groove (3) in main oil groove (1) both sides, it is characterized in that: divide an end of oil groove (3) to be connected, the other end sealing with main oil groove (1).
2. band according to claim 1 divides the internal combustion engine bearing of oil groove, it is characterized in that: described minute oil groove (3) the edge 1MM of closed end apart from bearing shell more than.
3. band according to claim 1 divides the internal combustion engine bearing of oil groove, it is characterized in that: the angle between described minute oil groove (3) and the main oil groove (1) is spent between 90 degree 30, and the best is 45 degree.
4. band according to claim 1 divides the internal combustion engine bearing of oil groove, it is characterized in that: described minute oil groove (3) be alternately distributed in main oil groove (1) both sides.
5. band according to claim 1 divides the internal combustion engine bearing of oil groove, it is characterized in that: all branch oil grooves (3) that are positioned at described main oil groove (1) homonymy are parallel.
6. band according to claim 1 divides the internal combustion engine bearing of oil groove, it is characterized in that: the distance that is positioned between all adjacent branch oil grooves (3) of described main oil groove (1) homonymy is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010275211 CN101949411A (en) | 2010-09-06 | 2010-09-06 | Internal-combustion engine bush with oil distribution grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010275211 CN101949411A (en) | 2010-09-06 | 2010-09-06 | Internal-combustion engine bush with oil distribution grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101949411A true CN101949411A (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010275211 Pending CN101949411A (en) | 2010-09-06 | 2010-09-06 | Internal-combustion engine bush with oil distribution grooves |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102705A (en) * | 2011-03-14 | 2011-06-22 | 李耀强 | Bearing bush |
| CN111015117A (en) * | 2019-12-25 | 2020-04-17 | 重庆跃进机械厂有限公司 | Machining method for bearing bush groove of marine engine |
| CN111042912A (en) * | 2019-12-18 | 2020-04-21 | 马双斌 | High-performance long-acting supercharger |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD266388A1 (en) * | 1987-11-30 | 1989-03-29 | Ifa Motorenwerke | BEARINGS |
| GB2245317A (en) * | 1990-05-23 | 1992-01-02 | Coussinets Ste Indle | Bearing bush |
| JP2003139125A (en) * | 2001-11-06 | 2003-05-14 | Suzuki Motor Corp | Crank bearing device for internal combustion engine |
| CN201443567U (en) * | 2009-06-16 | 2010-04-28 | 山东科技职业学院 | Fore bearing of camshaft |
| CN201827240U (en) * | 2010-09-06 | 2011-05-11 | 李耀强 | Internal combustion engine bearing bush with oil separation slots |
-
2010
- 2010-09-06 CN CN 201010275211 patent/CN101949411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD266388A1 (en) * | 1987-11-30 | 1989-03-29 | Ifa Motorenwerke | BEARINGS |
| GB2245317A (en) * | 1990-05-23 | 1992-01-02 | Coussinets Ste Indle | Bearing bush |
| JP2003139125A (en) * | 2001-11-06 | 2003-05-14 | Suzuki Motor Corp | Crank bearing device for internal combustion engine |
| CN201443567U (en) * | 2009-06-16 | 2010-04-28 | 山东科技职业学院 | Fore bearing of camshaft |
| CN201827240U (en) * | 2010-09-06 | 2011-05-11 | 李耀强 | Internal combustion engine bearing bush with oil separation slots |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102705A (en) * | 2011-03-14 | 2011-06-22 | 李耀强 | Bearing bush |
| CN111042912A (en) * | 2019-12-18 | 2020-04-21 | 马双斌 | High-performance long-acting supercharger |
| CN111015117A (en) * | 2019-12-25 | 2020-04-17 | 重庆跃进机械厂有限公司 | Machining method for bearing bush groove of marine engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110119 |