CN103758608A - Crankshaft connecting rod assembly - Google Patents
Crankshaft connecting rod assembly Download PDFInfo
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- CN103758608A CN103758608A CN201410001053.5A CN201410001053A CN103758608A CN 103758608 A CN103758608 A CN 103758608A CN 201410001053 A CN201410001053 A CN 201410001053A CN 103758608 A CN103758608 A CN 103758608A
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- connecting rod
- cavity
- crank
- oil
- oilhole
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a crankshaft connecting rod assembly which comprises a left crank, a right crank and a connecting rod. The connecting rod is positioned between the left crank and the right crank and is connected with the left crank and the right crank by a crankpin; a needle roller bearing is arranged between the crankpin and the connecting rod; a cavity is arranged in the crankpin, an oil plug is arranged on one side of the cavity, the right crank is communicated with an oil channel of the cavity via an inclined oil hole formed in the right crank, and a small oil hole which is communicated with the needle roller bearing is further formed in the cavity. The crankshaft connecting rod assembly is characterized by further comprising an oil stain separating part, the oil stain separating part is mounted in the cavity and is a bowl-shaped part, a separating oil hole is formed in the bottom of the bowl-shaped part, and the bowl-shaped part is mounted between the small oil hole and the inclined oil hole. The crankshaft connecting rod assembly has the advantages that lubricating oil is retained when flowing through the oil stain separating part, oil stain with high specific gravity can be thrown to side walls of the cavity under the effect of centrifugal force, the side walls of the cavity are far away from a rotating center, accordingly, oil stain which flows into the needle roller bearing can be greatly reduced, and the needle roller bearing cannot be easily abraded; the crankshaft connecting rod assembly is simple in machining and manufacturing, and a good service effect can be realized.
Description
Technical field
The present invention relates to field of mechanical technique, particularly relate to a kind of crankshaft rod assembly.
Background technique
Crankshaft rod assembly is that motor is realized work cycle, completes the important moving element of transformation of energy.In prior art, crankshaft rod assembly comprises left crank, right crank and connecting rod, and described connecting rod, between left crank and right crank, and is connected with right crank with left crank by crank pin; Between described crank pin and connecting rod, be provided with needle bearing; In crank pin, have cavity, it is stifled that cavity one side is equipped with oil, has the oil duct that is communicated with above-mentioned cavity by inclined oil hole of air in right crank, and above-mentioned cavity also has the little oilhole that is communicated with needle bearing place.Lubricant oil enters cavity through right crank oil duct, inclined oil hole of air successively, then flows to needle bearing place through little oilhole, to realize lubricating needle bearing.The deficiencies in the prior art are, inevitably have impurity in lubricant oil, and after long-term use, greasy dirt will be accumulated in needle bearing place, and this will cause needle bearing wearing and tearing aggravation, even kill, and have a strong impact on the working life of crankshaft rod assembly.Need to be improved.
Summary of the invention
The present invention aims to provide the nonabradable crankshaft rod assembly of a kind of needle bearing.
Technical solution of the present invention is as follows:
A crankshaft rod assembly, comprises left crank, right crank and connecting rod, and described connecting rod, between left crank and right crank, and is connected with right crank with left crank by crank pin; Between described crank pin and connecting rod, be provided with needle bearing; In crank pin, there is cavity, it is stifled that cavity one side is equipped with oil, in right crank, there is the oil duct that is communicated with above-mentioned cavity by inclined oil hole of air, above-mentioned cavity also has the little oilhole that is communicated with needle bearing place, it is characterized in that: it also comprises the greasy dirt separation member being installed in above-mentioned cavity, on described greasy dirt separation member, have separated oilhole, it is installed between little oilhole and inclined oil hole of air.
The present invention is owing to adopting technique scheme, and lubricant oil enters cavity through right crank oil duct, inclined oil hole of air successively, then through above-mentioned separated oilhole, little oilhole, flows to needle bearing place successively, realizes lubricating needle bearing.In this process, lubricant oil is detained at greasy dirt separation member place, because greasy dirt separation member is with crank pin High Rotation Speed, the greasy dirt that in lubricant oil, proportion is larger will get rid of to the cavity sidewalls place away from gyration center under the effect of centrifugal force, greasy dirt separation member has played the object of separated greasy dirt, the greasy dirt that enters needle bearing place will greatly reduce, and needle bearing is not easy to wear, realize easily goal of the invention.
Further technological scheme is: described separated oilhole is positioned at a side of close gyration center on greasy dirt separation member.
The good separating effect of this technological scheme.
Further technological scheme is: described greasy dirt separation member is the bowl that bottom has separated oilhole.
This technological scheme is convenient to install, location.
Further technological scheme is again: the aperture of described separated oilhole is suitable with the aperture of little oilhole.
The pore size of the separated oilhole in this technological scheme is suitable, and neither impact is lubricated, can produce good separating effect again.
Manufacturing of the present invention is simple, and using effect is good, and practicability is good.Facts have proved, the effective separated greasy dirt of energy, needle bearing is not easy to wear.
Accompanying drawing explanation
Below with reference to drawings and Examples, the present invention is described in further details.
The structural representation that accompanying drawing 1 is the embodiment of the present invention.
In figure, each sequence number is respectively: 1, left crank; 2, crank pin; 3, needle bearing; 4, connecting rod; 5, right handle pin; 6, greasy dirt separation member; 7, separated oilhole; 8, greasy dirt; 9, little oilhole; 10, oil duct; 11, oil is stifled; 12, inclined oil hole of air; 13, dark oilhole.
Embodiment
Referring to accompanying drawing 1, the crankshaft rod assembly shown in the embodiment of the present invention, comprises left crank 1, right crank 5 and connecting rod 4, and described connecting rod 4, between left crank 1 and right crank 5, and is connected with right crank 5 with left crank 1 by crank pin 2; Between described crank pin and connecting rod, be provided with needle bearing 3; In crank pin 2, there is cavity, cavity one side is equipped with oil stifled 11, in right crank, there is the oil duct 10 that is communicated with above-mentioned cavity by inclined oil hole of air 12, above-mentioned cavity also has the little oilhole 9 that is communicated with needle bearing 3 places, it is characterized in that: it also comprises the greasy dirt separation member 6 being installed in above-mentioned cavity, described greasy dirt separation member is the bowl that bottom has separated oilhole 7, and it is installed between little oilhole 9 and inclined oil hole of air 12.Separated oilhole 7 is positioned at a side of close gyration center on greasy dirt separation member 6, and the aperture of its aperture and little oilhole 9 is suitable.
Lubricant oil enters cavity through dark oilhole 13, right crank oil duct 10, inclined oil hole of air 12 successively, then through above-mentioned separated oilhole 7, little oilhole 9, flows to needle bearing 3 places successively, realizes lubricating needle bearing.In this process, lubricant oil is detained at greasy dirt separation member place, because greasy dirt separation member is with crank pin High Rotation Speed, the greasy dirt that in lubricant oil, proportion is larger will get rid of to the cavity sidewalls place 8 away from gyration center under the effect of centrifugal force, greasy dirt separation member has played the object of separated greasy dirt at this, the greasy dirt that enters needle bearing place will greatly reduce, and needle bearing 3 is not easy to wear.
The present invention that above-mentioned structure like this forms all has many saving graces for technician of the same trade now, and the progressive that really possesses skills.
But, in technical field of the present invention, as long as possess the most basic knowledge, can improve other exercisable embodiments of the present invention.In the present invention substantive technological scheme has been proposed to patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a crankshaft rod assembly, comprises left crank, right crank and connecting rod, and described connecting rod, between left crank and right crank, and is connected with right crank with left crank by crank pin; Between described crank pin and connecting rod, be provided with needle bearing; In crank pin, there is cavity, it is stifled that cavity one side is equipped with oil, in right crank, there is the oil duct that is communicated with above-mentioned cavity by inclined oil hole of air, above-mentioned cavity also has the little oilhole that is communicated with needle bearing place, it is characterized in that: it also comprises the greasy dirt separation member being installed in above-mentioned cavity, on described greasy dirt separation member, have separated oilhole, it is installed between little oilhole and inclined oil hole of air.
2. crankshaft rod assembly according to claim 1, is characterized in that: described separated oilhole is positioned at a side of close gyration center on greasy dirt separation member.
3. crankshaft rod assembly according to claim 1, is characterized in that: described greasy dirt separation member is the bowl that bottom has separated oilhole.
4. according to claim 1,2,3 arbitrary described crankshaft rod assemblies, it is characterized in that: the aperture of described separated oilhole is suitable with the aperture of little oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001053.5A CN103758608B (en) | 2014-01-03 | 2014-01-03 | Crankshaft rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001053.5A CN103758608B (en) | 2014-01-03 | 2014-01-03 | Crankshaft rod assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758608A true CN103758608A (en) | 2014-04-30 |
| CN103758608B CN103758608B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410001053.5A Active CN103758608B (en) | 2014-01-03 | 2014-01-03 | Crankshaft rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103758608B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389678A (en) * | 2014-10-29 | 2015-03-04 | 青岛德盛机械制造有限公司 | Motorcycle, motorcycle crank connecting rod assembly and crank pin seal assembly |
| CN111306180A (en) * | 2020-03-11 | 2020-06-19 | 重庆虎江机械有限公司 | Crankshaft connecting rod assembly of motorcycle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105197A (en) * | 2007-08-09 | 2008-01-16 | 力帆实业(集团)有限公司 | Crankshaft for gasoline engine |
| CN201074638Y (en) * | 2007-08-10 | 2008-06-18 | 力帆实业(集团)股份有限公司 | General purpose petrol engine crankshaft |
| CN201874969U (en) * | 2010-12-13 | 2011-06-22 | 张宇 | Crankshaft of engine |
| CN202812031U (en) * | 2012-08-21 | 2013-03-20 | 青岛迈特园林机械零部件有限公司 | Crank connecting rod group used for two-stroke engine |
| CN203685336U (en) * | 2014-01-03 | 2014-07-02 | 江苏罡阳股份有限公司 | Crankshaft and connecting rod assembly |
-
2014
- 2014-01-03 CN CN201410001053.5A patent/CN103758608B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105197A (en) * | 2007-08-09 | 2008-01-16 | 力帆实业(集团)有限公司 | Crankshaft for gasoline engine |
| CN201074638Y (en) * | 2007-08-10 | 2008-06-18 | 力帆实业(集团)股份有限公司 | General purpose petrol engine crankshaft |
| CN201874969U (en) * | 2010-12-13 | 2011-06-22 | 张宇 | Crankshaft of engine |
| CN202812031U (en) * | 2012-08-21 | 2013-03-20 | 青岛迈特园林机械零部件有限公司 | Crank connecting rod group used for two-stroke engine |
| CN203685336U (en) * | 2014-01-03 | 2014-07-02 | 江苏罡阳股份有限公司 | Crankshaft and connecting rod assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389678A (en) * | 2014-10-29 | 2015-03-04 | 青岛德盛机械制造有限公司 | Motorcycle, motorcycle crank connecting rod assembly and crank pin seal assembly |
| CN111306180A (en) * | 2020-03-11 | 2020-06-19 | 重庆虎江机械有限公司 | Crankshaft connecting rod assembly of motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758608B (en) | 2017-01-04 |
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