CN204371438U - Internal combustion (IC) engine camshaft main journal face structure - Google Patents
Internal combustion (IC) engine camshaft main journal face structure Download PDFInfo
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- CN204371438U CN204371438U CN201420816919.3U CN201420816919U CN204371438U CN 204371438 U CN204371438 U CN 204371438U CN 201420816919 U CN201420816919 U CN 201420816919U CN 204371438 U CN204371438 U CN 204371438U
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- main journal
- camshaft
- crown
- internal combustion
- arc
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Abstract
The utility model relates to a kind of internal combustion (IC) engine camshaft main journal face structure, belong to camshaft technical field, main feature is that main journal surface is in crown R arc, the utility model is the change to existing camshaft main journal face shape, main journal surface is made to form crown R arc by processing, the crown R arc structure on main journal surface makes main journal when coordinating with bearing shell in camshaft using process, in the middle of main journal, crown height point first contacts bearing shell, after trickle distortion, main journal contacts with whole bearing shell again, the load that the two edges place of main journal is born decreases, thus the wearing and tearing of main journal two edges are reduced, improve the working life of camshaft.
Description
Technical field
The utility model relates to a kind of internal combustion (IC) engine camshaft main journal face structure, belongs to camshaft technical field.
Background technique
Camshaft is the strength member of motor, and camshaft main journal is the position keeping the overall smooth running of camshaft.The quality of main journal directly affects the usability of motor, and the circularity, cylindricity, roughness etc. of current cam shaft design to main journal have done relevant requirement.In use we find to there is a universal phenomenon in the failure mode of camshaft main journal, and serious wear in the middle of the wearing and tearing comparatively of main journal two edges, forms serious wear trace in main journal two edges.The structure on current internal combustion (IC) engine camshaft main journal surface is parallel with the axis of camshaft, easily produces the inordinate wear that edge load causes main journal two edges in camshaft working procedure.Solely consider influence factor from certain design parameter of existing main journal, often do not reach the effect of dealing with problems.
Model utility content
The purpose of this utility model is to cause the inordinate wear of main journal two edges for existing camshaft because structural factor easily produces edge load in the course of the work, a kind of internal combustion (IC) engine camshaft main journal face structure is provided, the load two edges place of main journal being born by the utility model decreases, thus the wearing and tearing of main journal two edges are reduced, extend the working life of camshaft.
The purpose of this utility model is achieved through the following technical solutions, and a kind of internal combustion (IC) engine camshaft main journal face structure, is characterized in that, described main journal surface is in crown R arc.
The radius of described crown R arc is R1000-100000 mm.
The utility model is the change to existing camshaft main journal face shape, main journal surface is made to form crown R arc by processing, the crown R arc structure on main journal surface makes main journal when coordinating with bearing shell in camshaft using process, in the middle of main journal, crown height point first contacts bearing shell, after trickle distortion, main journal contacts with whole bearing shell again, the load that the two edges place of main journal is born decreases, thus make main journal two edges wearing and tearing reduce, improve the working life of camshaft.
Accompanying drawing explanation
Fig. 1 is the utility model partial structurtes schematic diagram;
Fig. 2 is the structure for amplifying schematic diagram of the axial direction in A portion in Fig. 1;
In figure, 1 camshaft, 2 main journals, 3 crown R arcs.
Embodiment
Further illustrate the utility model in conjunction with the accompanying drawings and embodiments, as shown in Figure 1, main journal 2 surface of camshaft 1 of the present utility model is in crown R arc 3, and the radius of crown R arc 3 is R1000-100000mm.
Claims (2)
1. an internal combustion (IC) engine camshaft main journal face structure, is characterized in that, described main journal surface is in crown R arc.
2. internal combustion (IC) engine camshaft main journal face according to claim 1 structure, is characterized in that, the radius of described crown R arc is R1000-100000 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816919.3U CN204371438U (en) | 2014-12-22 | 2014-12-22 | Internal combustion (IC) engine camshaft main journal face structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816919.3U CN204371438U (en) | 2014-12-22 | 2014-12-22 | Internal combustion (IC) engine camshaft main journal face structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371438U true CN204371438U (en) | 2015-06-03 |
Family
ID=53327667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420816919.3U Active CN204371438U (en) | 2014-12-22 | 2014-12-22 | Internal combustion (IC) engine camshaft main journal face structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775863A (en) * | 2014-12-22 | 2015-07-15 | 亚新科凸轮轴（仪征）有限公司 | Main journal surface structure for camshaft of internal combustion engine |
-
2014
- 2014-12-22 CN CN201420816919.3U patent/CN204371438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775863A (en) * | 2014-12-22 | 2015-07-15 | 亚新科凸轮轴（仪征）有限公司 | Main journal surface structure for camshaft of internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |