CN201486611U - Centrifugally-lubricated crankshaft mechanism - Google Patents
Centrifugally-lubricated crankshaft mechanism Download PDFInfo
- Publication number
- CN201486611U CN201486611U CN200920192242XU CN200920192242U CN201486611U CN 201486611 U CN201486611 U CN 201486611U CN 200920192242X U CN200920192242X U CN 200920192242XU CN 200920192242 U CN200920192242 U CN 200920192242U CN 201486611 U CN201486611 U CN 201486611U
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- CN
- China
- Prior art keywords
- oil
- connecting rod
- crank
- crankcase
- crankshaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a centrifugally-lubricated crankshaft mechanism. The centrifugally-lubricated crankshaft mechanism comprises a crankcase, a left crank, a right crank, a main journal, a connecting rod and a connecting rod journal, wherein the big end of the connecting rod is connected to the connecting rod journal; the connecting rod journal is provided with a crankshaft oil passage; the right crankcase is provided with a main oil passage which is communicated with the crankshaft oil passage via a flow passage; an oil delivering disc is arranged in the main oil passage; an oil thrower wheel is arranged in the flow passage; the oil delivering disc is arranged on the right crankcase; the oil thrower wheel is arranged on the right crank and is provided with a central hole; the right crank extends outwards from the central hole of the oil thrower wheel; and the upper end face of the oil delivering disc has a cross break surface extending into the central hole of the oil thrower wheel. The centrifugally-lubricated crankshaft mechanism has low assembling requirements and is unlikely to cause the pressure loss of lubrication oil; impurities in the lubrication oil are left at the upper end of the right crank and clean lubrication oil is pressed into the crankshaft oil passage under the effect of a centrifugal force produced by the rotation of the crank; and the centrifugally-lubricated crankshaft mechanism has low sealing requirements on the two ends of the main journal and low requirements on the cleanliness of the lubrication oil.
Description
(1) technical field
The utility model relates to a kind of crank mechanism.
(2) background technique
During motorcycle engine work, the crank-connecting rod load-bearing is big, the rotating speed height, therefore the lubricated employing at engine link neck place is the lubricated form of engine oil pressure, the oil lubricating system of existing engine connecting rod of motor cycle neck is a kind of to be by strainer, oil pump, secondary filter and right crankcase and right crankcase cover main oil gallery constitute, this lubricating system is had relatively high expectations to the coaxality at crank center and right axle box cover oilhole center, two oilholes are to finish in different manufacturing procedures, add and easily produce machining error man-hour, also to produce cumulative error during assembling, cause two oilhole centers to be staggered, cause the engine oil pressure partial loss.
Another kind is that lubrication system adopts the main journal that directly is provided to bent axle by the oil duct of casing, by the main journal oil duct lubricant oil is provided to connecting rod neck place, this lubricating system is very high to the seal request at main journal two ends, and is also very high to the turbidity test requirement of lubricant oil.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing crank mechanism connecting rod neck lubricating system, the utility model provides the crank mechanism that adopts banjo lubrication.
The technical scheme in the invention for solving the technical problem is: a kind of crank mechanism that adopts banjo lubrication, comprise crankcase, left crank, right crank, main journal, connecting rod, connecting rod neck, described crankcase is made up of left crankcase and right crankcase, the big end of described connecting rod is connected on the described connecting rod neck, offer crankshaft oil gallery on the described connecting rod neck, offer main oil gallery on the described right crankcase, passed through runner UNICOM between described main oil gallery and the described crankshaft oil gallery;
Be provided with the oil transportation dish in the described main oil gallery, the described mistake in the runner is provided with disc, described oil transportation dish is installed on the described right crankcase, described disc is installed on the described right crank, offer center hole on the described disc, described right crank stretches out from the center hole of described disc, and the upper-end surface of described oil transportation dish has cross break face, and described cross break face stretches in the center hole of described disc.
Further, described oil transportation dish is installed on the described right crankcase by bolt.
The utility model in use, lubricant oil entered in the runner from the cross break face that main oil gallery flows through oil transportation dish upper-end surface, realized the lubricated of bent axle thereby under the centrifugal action of bent axle lubricant oil is pressed into the crank shaft oil duct during operation.
The beneficial effects of the utility model are: 1. matching requirements are not high, are difficult for causing the loss of lubricating oil pressure; 2. lubricant oil is under the centrifugal action that the crank rotation produces when getting rid of oil, and impurity is stayed the upper end of right crank, and clean lubricant oil is pressed into crankshaft oil gallery, and is not high to the seal request at main journal two ends, and is also not high to the turbidity test requirement of lubricant oil.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of crank mechanism that adopts banjo lubrication, comprise crankcase, left crank 1, right crank 2, main journal, connecting rod 3, connecting rod neck 4, described crankcase is made up of left crankcase and right crankcase 5, the big end of described connecting rod 3 is connected on the described connecting rod neck 4, offer crankshaft oil gallery 6 on the described connecting rod neck 4, offer main oil gallery 7 on the described right crankcase 5, passed through runner 8 UNICOMs between described main oil gallery 7 and the described crankshaft oil gallery 6;
Be provided with oil transportation dish 9 in the described main oil gallery 7, the described mistake in the runner 8 is provided with disc 10, described oil transportation dish 9 is installed on the described right crankcase 5 by bolt, described disc 10 is installed on the described right crank 2, offer center hole on the described disc 10, described right crank 2 stretches out from the center hole of described disc 10, and the upper-end surface of described oil transportation dish 9 has cross break face, and described cross break face stretches in the center hole of described disc 10.
The utility model in use, lubricant oil entered in the runner 8 from the cross break face that main oil gallery 7 flows through oil transportation dish 9 upper-end surfaces, under the centrifugal action of bent axle, impurity is stayed the upper end of right crank during operation, clean lubricant oil is pressed into crankshaft oil gallery 6.
Claims (2)
1. crank mechanism that adopts banjo lubrication, comprise crankcase, left crank, right crank, main journal, connecting rod, connecting rod neck, described crankcase is made up of left crankcase and right crankcase, the big end of described connecting rod is connected on the described connecting rod neck, it is characterized in that: offer crankshaft oil gallery on the described connecting rod neck, offer main oil gallery on the described right crankcase, passed through runner UNICOM between described main oil gallery and the described crankshaft oil gallery;
Be provided with the oil transportation dish in the described main oil gallery, the described mistake in the runner is provided with disc, described oil transportation dish is installed on the described right crankcase, described disc is installed on the described right crank, offer center hole on the described disc, described right crank stretches out from the center hole of described disc, and the upper-end surface of described oil transportation dish has cross break face, and described cross break face stretches in the center hole of described disc.
2. the crank mechanism of employing banjo lubrication as claimed in claim 1 is characterized in that: described oil transportation dish is installed on the described right crankcase by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920192242XU CN201486611U (en) | 2009-08-25 | 2009-08-25 | Centrifugally-lubricated crankshaft mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920192242XU CN201486611U (en) | 2009-08-25 | 2009-08-25 | Centrifugally-lubricated crankshaft mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486611U true CN201486611U (en) | 2010-05-26 |
Family
ID=42425493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920192242XU Expired - Fee Related CN201486611U (en) | 2009-08-25 | 2009-08-25 | Centrifugally-lubricated crankshaft mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892883A (en) * | 2010-08-02 | 2010-11-24 | 浙江钱江摩托股份有限公司 | Lubricating device for crankshaft connecting mechanism of motorcycle |
| CN108118470A (en) * | 2018-03-05 | 2018-06-05 | 苏州强逸机械有限公司 | A kind of sewing machine crank connecting rod lubricating arrangement |
-
2009
- 2009-08-25 CN CN200920192242XU patent/CN201486611U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892883A (en) * | 2010-08-02 | 2010-11-24 | 浙江钱江摩托股份有限公司 | Lubricating device for crankshaft connecting mechanism of motorcycle |
| CN101892883B (en) * | 2010-08-02 | 2012-09-26 | 浙江钱江摩托股份有限公司 | Lubricating device for crankshaft connecting mechanism of motorcycle |
| CN108118470A (en) * | 2018-03-05 | 2018-06-05 | 苏州强逸机械有限公司 | A kind of sewing machine crank connecting rod lubricating arrangement |
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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: 20100526 Termination date: 20130825 |