CN101042154A - Engines connecting rod bushing - Google Patents
Engines connecting rod bushing Download PDFInfo
- Publication number
- CN101042154A CN101042154A CN 200710014522 CN200710014522A CN101042154A CN 101042154 A CN101042154 A CN 101042154A CN 200710014522 CN200710014522 CN 200710014522 CN 200710014522 A CN200710014522 A CN 200710014522A CN 101042154 A CN101042154 A CN 101042154A
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- oil storage
- storage tank
- pressure
- bearing zone
- connecting rod
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Abstract
The engine linking bar sleeve with cylindrical body that comprises the lower bearing area for the pressure from the top dead end to the lower dead end of the piston pin, and the up bearing area bearing the pressure from lower end point to the top end point, with the said up end bearing area with oil holes, the said body inner wall having main oil storage slot sticking to the surrounding area, the said main oil storage slot connecting with the said oil hole, the said body inner wall having sub oil storage slot whose one end connecting with the main oil storage slot, the other end open at the said end surface. It has strong bearing ability, improved lubrication effect, improved reliability of the piston linking bar and extended durability.
Description
Technical field
The present invention relates to the lining technical field, relate in particular to a kind of lining that is installed on connecting rod small end of engine.
Background technique
Engines connecting rod bushing is installed on the microcephaly of engine link, plays the effect of sliding bearing between wrist pin and engine link.When lower dead center was moved, will exert pressure to the bottom of lining by wrist pin from top dead center for piston; And piston from lower dead center when top dead center moves, wrist pin will be exerted pressure to the top of lining.Because the lower area (hereinafter referred to as pressure-bearing zone, bottom) of wrist pin pressure is born in the restriction of connecting rod swing angle, and the upper area (hereinafter referred to as pressure-bearing zone, top) that bears wrist pin pressure all is a definite zone.
In order to guarantee lubricating between wrist pin and the lining, the oil storage tank structure is set on the lining inwall usually.Lubricant oil is splashed into oil storage tank from oilhole, thereby forms one deck lubricant film between wrist pin and lining.The explosive force of working stroke combustion gas will be born in pressure-bearing zone, bottom, Europe III diesel engine for example, and the maximum outbreak pressure of motor reaches 165bar, thereby bigger pressure will be born than pressure-bearing zone, top in the pressure-bearing zone, bottom of lining.But the oil storage tank structure of known connecting rob bushing is not considered this point, and its oil storage tank is distributed at the whole inwall of lining, thereby bearing area, lining bottom always is worn quickly.In addition, lubricant oil can only enter oil storage tank from oilhole, and oilhole generally all is opened in the pressure-bearing zone, top of lining, oil inlet quantity is little, is difficult to form stable oil film, therefore, caused between wrist pin and the lining greasy property poor, the Piston and rod assembly reliability reduces, the problem that working life is short.
Summary of the invention
Technical problem to be solved by this invention is: a kind of engines connecting rod bushing is provided, and during with the solution engine operation, its oil storage tank oil inlet quantity is few, is difficult to form the problem of stablizing oil film.
For solving the problems of the technologies described above, technological scheme of the present invention is: engines connecting rod bushing, has cylindric body, described body comprises and is used to bear piston from the pressure-bearing zone, bottom of top dead center wrist pin pressure when lower dead center is moved be used to bear the top pressure-bearing zone of piston from lower dead center wrist pin pressure when top dead center moves; Pressure-bearing zone, described top is provided with oilhole, the inwall of described body is provided with the main oil storage tank along extending circumferentially, described main oil storage tank communicates with described oilhole, described inner body wall also is provided with secondary oil storage tank, the end face that an end of described secondary oil storage tank communicates with main oil storage tank, its other end is opened on described body.
As a kind of improvement, described main oil storage tank terminates in the pressure-bearing zone, bottom of described body, and described secondary oil storage tank is arranged on the inner body wall between described top pressure-bearing zone and the pressure-bearing zone, bottom.
Improve as another kind, described body offers a butt joint, and the body of described butt joint one side is provided with bump, and the body of the opposite side of described butt joint is provided with reentrant part, described bump and reentrant part snapping.
After having adopted technique scheme, the invention has the beneficial effects as follows: because described inner body wall also is provided with secondary oil storage tank, the end face that one end of described secondary oil storage tank communicates with main oil storage tank, its other end is opened on described body, on the one hand, lubricant oil not only can be splashed into from oilhole, but also can be splashed into from the opening of secondary oil storage tank at the body end face, the oil mass that enters oil storage tank is increased greatly; On the other hand, secondary oil storage tank also can play the oil storage effect, has increased oil reserve.Fact proved, when such structure is used, between lining and wrist pin, also can form stable oil film on the III diesel engine of Europe, thereby improve its greasy property between the two, strengthened the reliability of Piston and rod assembly, prolonged its working life.
Because described main oil storage tank terminates in the pressure-bearing zone, bottom of described body, described secondary oil storage tank is arranged on the inner body wall between described top pressure-bearing zone and the pressure-bearing zone, bottom, thereby make the no oil storage tank structure in pressure-bearing zone, bottom of bush body, strengthened the bearing capacity in pressure-bearing zone, body bottom, thereby make bush body obtain balance at each regional wear-resisting property, further strengthen the reliability of Piston and rod assembly, prolonged its working life.
Because described body offers a butt joint, the body of described butt joint one side is provided with bump, and the body of the opposite side of described butt joint is provided with reentrant part, described bump and reentrant part snapping, therefore, the change of lining shape can be subjected to the bump in mutual mouthful street and the restriction of reentrant part.With respect to the lining that docks naturally, when stressed, the shape of body is not easy to change, thereby makes the oil film that forms between lining and the wrist pin more stable.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the transverse sectional view of the embodiment of the invention;
Fig. 2 is the longitudinal sectional view of the embodiment of the invention;
Fig. 3 is the unfolded drawing of the embodiment of the invention.
Embodiment
Shown in Fig. 1 and Fig. 3 are common, engines connecting rod bushing has cylindric body, described body comprises and is used to bear the bottom pressure-bearing zone 3 of piston from top dead center wrist pin pressure when lower dead center is moved, the angle of circumference in this pressure-bearing zone, bottom 3 is greatly between 110 ° ~ 130 ° and be used to bear the top pressure-bearing zone of piston from lower dead center wrist pin pressure when top dead center moves.Pressure-bearing zone, described top is provided with oilhole 1, and described oilhole 1 has two, and described these two oilholes 1 are symmetricly set in the both sides of the middle vertical plane in pressure-bearing zone, described top.The inwall of described body is provided with the main oil storage tank 2 along extending circumferentially, described main oil storage tank 2 is positioned at the axial middle part of described body and communicates with described oilhole 1, described main oil storage tank 2 terminates in the pressure-bearing zone, bottom 3 of described body, be respectively equipped with two branch's oil storage tanks 8 at afterbody along horizontal expansion near the main oil storage tank 2 in pressure-bearing zone, bottom 3, described branch oil storage tank 8 is downward-sloping respectively, like this, when connecting rod swing, lubricant oil can be more swimmingly from flowing into pressure-bearing zone, bottom.
Described inner body wall also is provided with secondary oil storage tank 4, one end of described secondary oil storage tank 4 and the end face that main oil storage tank 2 communicates, its other end is opened on described body, described secondary oil storage tank 4 are arranged on the inner body wall between described top pressure-bearing zone and the pressure-bearing zone, bottom 3.
Shown in Fig. 2 and Fig. 3 were common, described secondary oil storage tank 4 had two pairs, and the secondary oil storage tank 4 of this two couple is symmetricly set in the both sides of the middle vertical plane in pressure-bearing zone, bottom 3, and each is to two both sides that also are symmetricly set in described main oil storage tank 2 in the secondary oil storage tank.The purpose that two pairs of secondary oil storage tanks 4 are set is to satisfy the needs of connecting rod swing, and and each is to be convenient to the both sides oil-feed to two effect is set in the secondary oil storage tank 4.For when the connecting rod swing, make lubricant oil flow into oil storage tanks 2 from secondary oil storage tank 4 more swimmingly, the interconnecting part of secondary oil storage tank 4 is downward-sloping.
The connecting rod small end that has adopts wedge-shaped structure, thereby lining also will adopt corresponding wedge-shaped structure, promptly the corresponding limit portion of body is downcut along the cutting line A among Fig. 2 and Fig. 3, in a word, one end of secondary oil storage tank 4 will be opened on the end face of described body, thereby makes lubricant oil enter main oil storage tank 2 from this opening through secondary oil storage tank 4.
As shown in Figure 3, described body offers a butt joint, and the body of described butt joint one side is provided with bump 5, and the body of the opposite side of described butt joint is provided with reentrant part 6, described bump 5 and reentrant part 6 snappings.
This lining can be made with sheet material, for example the copper coin material.According to the designing requirement blanking, on a surface of sheet material, process oil storage tank, secondary oil storage tank and oilhole earlier, then it is rolled into tube, and snap together at the butt joint place.
The present invention is simple in structure, but bearing capacity is strong, and lubrication effect improves obviously, and it not only can be applied to engine link, also can be used for some other and need guarantee the revolute pair structure of lubricating with stable oil film.
Claims (7)
1, engines connecting rod bushing, has cylindric body, described body comprises and is used to bear piston from the pressure-bearing zone, bottom (3) of top dead center wrist pin pressure when lower dead center is moved be used to bear the top pressure-bearing zone of piston from lower dead center wrist pin pressure when top dead center moves; Pressure-bearing zone, described top is provided with oilhole (1), the inwall of described body is provided with the main oil storage tank (2) along extending circumferentially, described main oil storage tank (2) communicates with described oilhole (1), it is characterized in that: described inner body wall also is provided with secondary oil storage tank (4), an end of described secondary oil storage tank (4) and the end face that main oil storage tank (2) communicates, its other end is opened on described body.
2, engines connecting rod bushing as claimed in claim 1, it is characterized in that: described main oil storage tank (2) is positioned at the axial middle part of described body, described secondary oil storage tank (4) has at least a pair of, described each to two in the secondary oil storage tank both sides that are symmetricly set in described main oil storage tank (2).
3, engines connecting rod bushing as claimed in claim 2 is characterized in that: described secondary oil storage tank (4) has two pairs, and the secondary oil storage tank of described this two couple (4) is symmetricly set in the both sides of the middle vertical plane in pressure-bearing zone, bottom (3).
4, engines connecting rod bushing as claimed in claim 3 is characterized in that: described secondary oil storage tank (4) is downward-sloping with the interconnecting part of main oil storage tank (2).
5, engines connecting rod bushing as claimed in claim 4 is characterized in that: the afterbody of the main oil storage tank in close pressure-bearing zone, bottom is respectively equipped with two branch's oil storage tanks (8) along horizontal expansion, and described branch oil storage tank (8) is downward-sloping respectively.
6, as described any engines connecting rod bushing of claim 1 to 5, it is characterized in that: described main oil storage tank (2) terminates in the pressure-bearing zone, bottom (3) of described body, and described secondary oil storage tank (4) is arranged on the inner body wall between described top pressure-bearing zone and the pressure-bearing zone, bottom (3).
7, engines connecting rod bushing as claimed in claim 6, it is characterized in that: described body offers a butt joint, the body of described butt joint one side is provided with bump (5), and the body of the opposite side of described butt joint is provided with reentrant part (6), described bump (5) and reentrant part (6) snapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100145227A CN100538091C (en) | 2007-04-11 | 2007-04-11 | Engines connecting rod bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100145227A CN100538091C (en) | 2007-04-11 | 2007-04-11 | Engines connecting rod bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101042154A true CN101042154A (en) | 2007-09-26 |
| CN100538091C CN100538091C (en) | 2009-09-09 |
Family
ID=38807877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100145227A Expired - Fee Related CN100538091C (en) | 2007-04-11 | 2007-04-11 | Engines connecting rod bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100538091C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364541A (en) * | 2012-03-28 | 2015-02-18 | 卡明斯公司 | Connecting rod lubrication apparatus |
| CN106763126A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | Connecting rob bushing |
| CN106870354A (en) * | 2017-02-21 | 2017-06-20 | 苟小平 | Six brass bushings of groove |
| CN110905917A (en) * | 2019-11-06 | 2020-03-24 | 珠海凯邦电机制造有限公司 | Linear bearing and motor |
| CN113007220A (en) * | 2021-04-08 | 2021-06-22 | 湖南机油泵股份有限公司 | Bushing and oil pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52113445A (en) * | 1976-03-19 | 1977-09-22 | Daido Metal Co Ltd | Bearing metal |
| GB2245317A (en) * | 1990-05-23 | 1992-01-02 | Coussinets Ste Indle | Bearing bush |
| CN2227761Y (en) * | 1995-05-04 | 1996-05-22 | 张洪强 | Engine connecting rod bearing shell |
| EP0935079B1 (en) * | 1998-01-16 | 2006-07-05 | Daido Metal Company Ltd. | Sliding bearing and method of producing same |
| CN2539875Y (en) * | 2002-03-11 | 2003-03-12 | 建准电机工业股份有限公司 | Self-lubricating bearing with collective terminal guiding groove |
| CN1920314A (en) * | 2006-09-16 | 2007-02-28 | 田泽华 | Crankshaft bush and connecting rod bush of internal combustion engine |
| CN201027794Y (en) * | 2007-04-11 | 2008-02-27 | 潍柴动力股份有限公司 | Connecting rod bushing of engine |
-
2007
- 2007-04-11 CN CNB2007100145227A patent/CN100538091C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364541A (en) * | 2012-03-28 | 2015-02-18 | 卡明斯公司 | Connecting rod lubrication apparatus |
| US9810257B2 (en) | 2012-03-28 | 2017-11-07 | Cummins Inc. | Connecting rod lubrication apparatus |
| CN107701586A (en) * | 2012-03-28 | 2018-02-16 | 卡明斯公司 | Connecting rod lubricating utensil |
| US10415630B2 (en) | 2012-03-28 | 2019-09-17 | Cummins Inc. | Connecting rod lubrication apparatus |
| CN106763126A (en) * | 2016-12-30 | 2017-05-31 | 广西玉柴机器股份有限公司 | Connecting rob bushing |
| CN106870354A (en) * | 2017-02-21 | 2017-06-20 | 苟小平 | Six brass bushings of groove |
| CN110905917A (en) * | 2019-11-06 | 2020-03-24 | 珠海凯邦电机制造有限公司 | Linear bearing and motor |
| CN110905917B (en) * | 2019-11-06 | 2021-03-19 | 珠海凯邦电机制造有限公司 | Linear bearing and motor |
| CN113007220A (en) * | 2021-04-08 | 2021-06-22 | 湖南机油泵股份有限公司 | Bushing and oil pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100538091C (en) | 2009-09-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20090909 Termination date: 20190411 |