CN205089390U - Motorcycle engine camshaft structure - Google Patents

Motorcycle engine camshaft structure Download PDF

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Publication number
CN205089390U
CN205089390U CN201520875542.3U CN201520875542U CN205089390U CN 205089390 U CN205089390 U CN 205089390U CN 201520875542 U CN201520875542 U CN 201520875542U CN 205089390 U CN205089390 U CN 205089390U
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CN
China
Prior art keywords
camshaft
oilhole
oil
oil duct
oil groove
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.)
Active
Application number
CN201520875542.3U
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Chinese (zh)
Inventor
李明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Chilong Motorcycle Parts Co Ltd
Original Assignee
Chongqing Chilong Motorcycle Parts Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Chilong Motorcycle Parts Co Ltd filed Critical Chongqing Chilong Motorcycle Parts Co Ltd
Priority to CN201520875542.3U priority Critical patent/CN205089390U/en
Application granted granted Critical
Publication of CN205089390U publication Critical patent/CN205089390U/en
Active legal-status Critical Current
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Abstract

The utility model provides a motorcycle engine camshaft structure, includes the camshaft, is equipped with the convex closure on the camshaft, and the camshaft both ends are the bearing installation department, are equipped with the oil duct in the camshaft, and the surface of bearing installation department is equipped with first annular oil groove, is equipped with first oilhole between first annular oil groove and the oil duct. In lubricating oil passed through annular oil groove that the oilhole arrived the surface of bearing installation department from the oil duct, lubricating oil was along with the rotatory of camshaft flows along annular oil groove, lubricate the bearing installation department, and partial lubricating oil can flow back to the oil duct through the oilhole while. It is not only lubricated effectual, reduced the loss of lubricating oil moreover.

Description

A kind of camshaft for motorcycle engine structure
Technical field
The utility model relates to a kind of air distributing mechanism of engine for motorcycle, particularly relates to a kind of camshaft for motorcycle engine structure.
Background technique
The valve cam of motorcycle engine is arranged in engine cylinder head by bearing, and cam is by rotating to make convex closure timing back down the air inlet push rod of intake valve and the push rod of giving vent to anger of exhaust valve, to open intake valve and exhaust valve.Therefore, in the process of cam high speed rotating, cam and bearing must obtain good Cooling and Lubricator, otherwise will cause cam or bearing premature failure.Application number be 201220721257.2 Chinese patent disclose a kind of distribution cam of motorcycle engine,
Comprise camshaft, described camshaft is arranged at intervals with the first convex closure and the second convex closure; The two ends, left and right of camshaft are respectively arranged with clutch shaft bearing assembly department and the second axle bearing mount portion; Camshaft is provided with center hole vertically; Center hole is blind hole, extends to clutch shaft bearing assembly department; The first oil duct is evenly equipped with between the surface of clutch shaft bearing assembly department and center hole; The surface of the second axle bearing mount portion is provided with spiral helicine oil groove.Although this cam structure can reach the effect of camshaft lubrication, due to the lubricant oil that arrives axle bearing mount portion surface along with the rotation of camshaft can run off very soon, therefore, lubrication effect is bad; And increase fuel delivery to meet good lubrication effect needs, thus increase user cost.
Model utility content
The purpose of this utility model is the camshaft for motorcycle engine structure providing a kind of high lubricating effect.
The purpose of this utility model realizes like this, a kind of camshaft for motorcycle engine structure, comprise camshaft, camshaft is provided with convex closure, camshaft two ends are axle bearing mount portion, be provided with oil duct in camshaft, the outer surface of axle bearing mount portion is provided with the first annular oil groove, is provided with the first oilhole between the first annular oil groove and oil duct.Lubricant oil is arrived from oil duct by oilhole in the first annular oil groove of the outer surface of axle bearing mount portion, and lubricant oil flow along the first annular oil groove along with the rotation of camshaft, thus lubricates axle bearing mount portion, while parts of lubricating oil can flow back to oil duct by oilhole.
In order to strengthen the lubrication effect to convex closure place, between the outer surface of convex closure and oil duct, be provided with the second oilhole.
In order to extend lubricant oil in the convex closure place camshaft waiting time circumferentially, strengthen lubrication effect, the camshaft outer surface at convex closure place is provided with the second annular oil groove, and above-mentioned second oilhole is arranged between the second annular oil groove and oil duct.
Above-mentioned oil duct is the center hole of camshaft.
Above-mentioned oil duct is blind hole, and cecum extends to axle bearing mount portion place, one end.
The opening end of oil duct is connected with sump.
The utility model has following beneficial effect:
1, the axle bearing mount portion outer surface of camshaft of the present utility model arranges the first annular oil groove, lubricant oil arrives in the first annular oil groove of the outer surface of axle bearing mount portion by oilhole from oil duct, lubricant oil flows along the first annular oil groove along with the rotation of camshaft, thus axle bearing mount portion is lubricated, parts of lubricating oil can flow back to oil duct by oilhole simultaneously.Due to the setting of the first annular oil groove, add the waiting time of lubricant oil on camshaft surface, not only increase lubrication effect, and decrease the loss of lubricant oil.
2, the utility model structure is simple, easy-to-use realization.
Accompanying drawing explanation
Fig. 1 is embodiment 1 schematic diagram of the utility model camshaft for motorcycle engine structure.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is embodiment 2 schematic diagram of the utility model camshaft for motorcycle engine structure.
Fig. 4 is the sectional view of Fig. 3.
In figure, 1. camshaft, 2. convex closure, 3. axle bearing mount portion, 4. oil duct, 5. the first annular oil groove, 6. the first oilhole, 7. the second oilhole, 8. the second annular oil groove.
Embodiment
Embodiment 1, a kind of camshaft for motorcycle engine structure, see Fig. 1 and Fig. 2, comprises camshaft 1, and camshaft 1 is provided with a convex closure 2, and camshaft 1 two ends are axle bearing mount portion 3, are provided with oil duct 4 in camshaft 1, and oil duct 4 is the center hole of camshaft 1.The outer surface of axle bearing mount portion 3 is provided with the opening being provided with the first oilhole 6, first oilhole 6 between the first annular oil groove 5, first annular oil groove 5 and oil duct 4 and is positioned at the first annular oil groove 5.The camshaft 1 at convex closure 2 place is circumferentially provided with the second annular oil groove 8, the second oilhole 7 is had between second annular oil groove 8 and oil duct 4, the opening of the second oilhole 7 is positioned at the second annular oil groove 8, first oilhole 6 and the second oilhole 7 is multiple and circumference is distributed on camshaft 1, in the present embodiment, the first oilhole 6 and the second oilhole 7 are respectively 4.Oil duct 4 is blind hole, and its cecum extends to one end axle bearing mount portion 3 place.The opening end of oil duct 4 is connected with sump.
Embodiment 2, a kind of camshaft for motorcycle engine structure, see Fig. 3 and Fig. 4, comprise camshaft 1, and camshaft 1 is provided with two convex closures 2, and camshaft 1 two ends are axle bearing mount portion 3, are provided with oil duct 4 in camshaft 1, and oil duct 4 is the center hole of camshaft 1.The outer surface of axle bearing mount portion 3 is provided with the opening being provided with the first oilhole 6, first oilhole 6 between the first annular oil groove 5, first annular oil groove 5 and oil duct 4 and is positioned at the first annular oil groove 5.The camshaft 1 at two convex closure 2 places is circumferentially respectively equipped with the second annular oil groove 8, the second oilhole 7 is had between second annular oil groove 8 and oil duct 4, the opening of the second oilhole 7 is positioned at the second annular oil groove 8, first oilhole 6 and the second oilhole 7 is multiple and circumference is distributed on camshaft 1, in the present embodiment, the first oilhole 6 and the second oilhole 7 are respectively 2.Oil duct 4 is blind hole, and its cecum extends to one end axle bearing mount portion 3 place.The opening end of oil duct 4 is connected with sump.
During engine operation, lubricant oil arrives in the first annular oil groove 5 of the outer surface of axle bearing mount portion 3 from oil duct 4 by the first oilhole 6, the second annular oil groove 8 is arrived by the second oilhole 7, lubricant oil flows along the first annular oil groove 5 and the second annular oil groove 8 along with the rotation of camshaft 1, axle bearing mount portion 3 and convex closure 2 are lubricated, parts of lubricating oil flows back to oil duct 4 by the first oilhole 6 and the second oilhole 7 simultaneously, not only high lubricating effect, and decrease the loss of lubricant oil, reduce oil plant cost.

Claims (6)

1. a camshaft for motorcycle engine structure, comprise the camshaft (1) with convex closure (2), described camshaft (1) two ends are axle bearing mount portion (3), it is characterized in that: in described camshaft (1), be provided with oil duct (4), the outer surface of described axle bearing mount portion (3) is provided with the first annular oil groove (5), is provided with the first oilhole (6) between described first annular oil groove (5) and oil duct (4).
2. camshaft for motorcycle engine structure as claimed in claim 1, is characterized in that: be provided with the second oilhole (7) between the outer surface of described convex closure (2) and oil duct (4).
3. camshaft for motorcycle engine structure as claimed in claim 2, it is characterized in that: camshaft (1) outer surface at described convex closure (2) place is provided with the second annular oil groove (8), described second oilhole (7) is arranged between described second annular oil groove (8) and oil duct (4).
4. the camshaft for motorcycle engine structure as described in any one of claim 1-3, is characterized in that: the center hole that described oil duct (4) is camshaft (1).
5. the camshaft for motorcycle engine structure as described in any one of claim 1-3, is characterized in that: described oil duct (4) is blind hole, and its cecum extends to one end axle bearing mount portion (3) place.
6. camshaft for motorcycle engine structure as claimed in claim 5, is characterized in that: the opening end of described oil duct (4) is connected with sump.
CN201520875542.3U 2015-11-05 2015-11-05 Motorcycle engine camshaft structure Active CN205089390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520875542.3U CN205089390U (en) 2015-11-05 2015-11-05 Motorcycle engine camshaft structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520875542.3U CN205089390U (en) 2015-11-05 2015-11-05 Motorcycle engine camshaft structure

Publications (1)

Publication Number Publication Date
CN205089390U true CN205089390U (en) 2016-03-16

Family

ID=55480086

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520875542.3U Active CN205089390U (en) 2015-11-05 2015-11-05 Motorcycle engine camshaft structure

Country Status (1)

Country Link
CN (1) CN205089390U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240067A (en) * 2015-11-05 2016-01-13 重庆驰龙摩托车配件有限公司 Cam shaft structure of motorcycle engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240067A (en) * 2015-11-05 2016-01-13 重庆驰龙摩托车配件有限公司 Cam shaft structure of motorcycle engine

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