CN202970819U - Camshaft with long service life - Google Patents
Camshaft with long service life Download PDFInfo
- Publication number
- CN202970819U CN202970819U CN 201220658963 CN201220658963U CN202970819U CN 202970819 U CN202970819 U CN 202970819U CN 201220658963 CN201220658963 CN 201220658963 CN 201220658963 U CN201220658963 U CN 201220658963U CN 202970819 U CN202970819 U CN 202970819U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- camshaft
- diameter
- cam
- service life
- 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 discloses a camshaft with long service life. The camshaft comprises a rotating shaft; the rotating shaft is fixedly connected with a cam; the rotating shaft is a hollow cylinder; and the excircle periphery of the rotating shaft is provided with a wave structure. Preferably, the diameter of excircle waves of the rotating shaft is 0.1-0.5mm larger than the diameter of a cam hole. Preferably, the diameter of the excircle waves of the rotating shaft is 0.3mm larger than the diameter of the cam hole. The camshaft disclosed by the utility model has the beneficial effects that materials are saved and the camshaft is easy to machine and is simple in structure; most importantly, the rotating shaft and the cam are connected more firmly, and the service life is longer.
Description
Technical field
The utility model belongs to automotive field, particularly the camshaft on motor car engine.
Background technique
The camshaft of conventional engines is welded in rotating shaft by cam, and this kind connecting means needs a large amount of welding rods, and the electric welding technical requirements is higher, long processing time, and efficient is low, if do not weld admittedly, is greatly shortened in its life-span.
The model utility content
For the deficiencies in the prior art, the utility model provides the camshaft of a kind of easy processing, long service life.
To achieve these goals, technical solution adopted in the utility model is:
The camshaft that life-span is long comprises rotating shaft, and rotating shaft is connected with cam, and described rotating shaft is hollow cylinder, and described rotating shaft excircle is arranged with ripple struction.
As preferably, described rotating shaft cylindrical ripple diameter is than the large 0.1-0.5mm of cam hole diameter.
As preferably, described rotating shaft cylindrical ripple diameter is than the large 0.3mm of cam hole diameter.
The beneficial effects of the utility model: the utility model has namely been saved material, easily processing, and most importantly rotating shaft simple in structure is connected more firm with cam, longer service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Long camshaft of a kind of life-span as shown in Figure 1 comprises rotating shaft 1, and rotating shaft 1 is connected with cam 2, and described rotating shaft 1 is hollow cylinder, and described rotating shaft 1 excircle is arranged with ripple 3 structures.Described rotating shaft 1 cylindrical ripple 3 diameters are than the large 0.1-0.5mm of cam hole diameter.Described rotating shaft 1 cylindrical ripple 3 diameters are than the large 0.3mm of cam hole diameter.
The utility model arranges ripple struction due to the rotating shaft outer ring, and certain gap is arranged between ripple, but because ripple race diameter and cam hole have certain magnitude of interference, cam is forced to be pressed into the rotating shaft post gap has not had to make its cooperation tightr, longer service life.
Be more than the utility model preferred forms, in related domain, those skilled in the art's simple change and replacement are all within protection domain of the present utility model.
Claims (3)
1. a long camshaft of life-span, comprise rotating shaft, and rotating shaft is connected with cam, and described rotating shaft is hollow cylinder, it is characterized in that: described rotating shaft excircle is arranged with ripple struction.
2. long camshaft of life-span according to claim 1, it is characterized in that: described rotating shaft cylindrical ripple diameter is than the large 0.1-0.5mm of cam hole diameter.
3. long camshaft of life-span according to claim 2, it is characterized in that: described rotating shaft cylindrical ripple diameter is than the large 0.3mm of cam hole diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658963 CN202970819U (en) | 2012-12-04 | 2012-12-04 | Camshaft with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658963 CN202970819U (en) | 2012-12-04 | 2012-12-04 | Camshaft with long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970819U true CN202970819U (en) | 2013-06-05 |
Family
ID=48511906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220658963 Expired - Fee Related CN202970819U (en) | 2012-12-04 | 2012-12-04 | Camshaft with long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970819U (en) |
-
2012
- 2012-12-04 CN CN 201220658963 patent/CN202970819U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JIAMING AUTO PARTS CO., LTD. Free format text: FORMER OWNER: WANG KUNQUAN Effective date: 20130617 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130617 Address after: 211700 No. 58 Yulan Road, Xuyi Economic Development Zone, Jiangsu, Huaian Patentee after: Jiangsu Jiaming Beijing Great Automotive Components Company Limited Address before: No. 58 Magnolia Road Economic Development Zone 211700 Huaian city Jiangsu County of Xuyi province (Jiangsu Jiaming Beijing Great Automotive Components Company Limited) Patentee before: Wang Kunquan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |