CN201599072U - Combined-type hollow camshaft - Google Patents
Combined-type hollow camshaft Download PDFInfo
- Publication number
- CN201599072U CN201599072U CN2009202584435U CN200920258443U CN201599072U CN 201599072 U CN201599072 U CN 201599072U CN 2009202584435 U CN2009202584435 U CN 2009202584435U CN 200920258443 U CN200920258443 U CN 200920258443U CN 201599072 U CN201599072 U CN 201599072U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- cams
- journal
- core shaft
- core tube
- 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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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to a camshaft which is one of five key components inside an engine, mainly to a combined-type hollow camshaft. The camshaft mainly comprises cams (1), core shaft tubes (2) and journal collars (3), wherein the cams (1) and the journal collars (3) are sleeved on the core shaft tubes (2), the inner walls of the cams (1) and the journal collars (3) are provided with jagged bulges which are located on a same circle, and the inner diameter of the circle is identical to the outer diameters of the core shaft tubes to form interference fit. As the inner walls of the cams and the journal collars are provided with jagged bulges, the utility model effectively prevents relative slide of the cams and the core shaft tubes, and prolongs the service life of the camshaft.
Description
Technical field
The utility model relates to the camshaft of one of engine interior five big key components and partss, mainly proposes a kind of hollow assembled camshaft.
Background technique
At present, under energy-saving and emission-reduction, the prerequisite that reduces cost, the lightweight of auto parts and components becomes inevitable development trend.Motor is as the core of automobile, wherein camshaft is as one of five big vital parts (cylinder body, cylinder cap, bent axle, connecting rod, camshaft) of motor, its processing has directly influenced vehicle performance, and therefore the manufacturing process to camshaft has proposed higher requirement.
Camshaft is processed into finished product to a bar integral body mostly, and its technological process is comparatively complicated, processing cost height, the requirement that can not satisfy energy-saving and emission-reduction, reduces cost.
Summary of the invention
For addressing the above problem, the purpose of this utility model is to propose a kind of hollow assembled camshaft.
For finishing the technological scheme that foregoing invention purpose the utility model adopted be: a kind of hollow assembled camshaft mainly comprises cam, core tube and journal collar; Described cam and journal collar are nested with in core tube, and the inwall of described cam and journal collar all has jagged projection, and convex portion is positioned on the same circumference, and its circumference internal diameter is identical with the outside dimension of core tube, constitute interference fit.
A kind of hollow assembled camshaft that the utility model proposes all has jagged projection at the inner chamber of cam and journal collar, has prevented that effectively cam and core tube from slide relative taking place, thereby improves camshaft working life.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Among the figure: 1, cam, 2, core tube, 3, journal collar.
Embodiment
With specific embodiment the utility model is illustrated in conjunction with the accompanying drawings:
A kind of hollow assembled camshaft mainly comprises cam 1, core tube 2 and journal collar 3; Described cam 1 and journal collar 3 are nested with in core tube 2, and the inwall of described cam 1 and journal collar 2 all has jagged projection, and convex portion is positioned on the same circumference, and its circumference internal diameter is identical with the outside dimension of core tube, constitute interference fit.
Claims (1)
1. a hollow assembled camshaft mainly comprises cam (1), core tube (2) and journal collar (3); It is characterized in that: described cam (1) and journal collar (3) are nested with in core tube (2), the inwall of described cam (1) and journal collar (3) all has jagged projection, and convex portion is positioned on the same circumference, and its circumference internal diameter is identical with the outside dimension of core tube, constitutes interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202584435U CN201599072U (en) | 2009-11-25 | 2009-11-25 | Combined-type hollow camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202584435U CN201599072U (en) | 2009-11-25 | 2009-11-25 | Combined-type hollow camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599072U true CN201599072U (en) | 2010-10-06 |
Family
ID=42810126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202584435U Expired - Fee Related CN201599072U (en) | 2009-11-25 | 2009-11-25 | Combined-type hollow camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482763A (en) * | 2020-04-15 | 2020-08-04 | 哈尔滨工业大学（威海） | Combined hollow camshaft and shaft pressing and upsetting manufacturing process method |
-
2009
- 2009-11-25 CN CN2009202584435U patent/CN201599072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482763A (en) * | 2020-04-15 | 2020-08-04 | 哈尔滨工业大学（威海） | Combined hollow camshaft and shaft pressing and upsetting manufacturing process method |
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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: 20101006 Termination date: 20101125 |