CN2797642Y - Camshaft assembly for motor-cycle engine - Google Patents
Camshaft assembly for motor-cycle engine Download PDFInfo
- Publication number
- CN2797642Y CN2797642Y CN 200520009458 CN200520009458U CN2797642Y CN 2797642 Y CN2797642 Y CN 2797642Y CN 200520009458 CN200520009458 CN 200520009458 CN 200520009458 U CN200520009458 U CN 200520009458U CN 2797642 Y CN2797642 Y CN 2797642Y
- Authority
- CN
- China
- Prior art keywords
- camshaft
- camshaft body
- ball bearing
- chainwheel
- utility
- 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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Abstract
The utility model discloses a camshaft assembly for a motorcycle engine. The utility model is provided with a camshaft body, a rotary speed worm wheel which is fixedly connected to the left end of the camshaft body, a chainwheel seat which is fixed on the camshaft body, and a timing driven chainwheel which is fixedly connected to the chainwheel seat through bolts, wherein a left ball bearing is arranged near the right side of the chainwheel seat on the camshaft body, the right end part of the camshaft body is also provided with a right ball bearing and the left and the right ball bearings both adopt the structure of double rows of ball bearings. The utility model adopts the structure of the ball bearings, friction coefficient is diminished, the loss of the engine for overcoming friction is reduced, thermal efficiency is effectively enhanced, the requirements of the ball bearing for lubricating conditions are wider, and short-time critical load working conditions under different using environment can be accommodated. Meanwhile, the structure of the double rows of ball bearings is adopted, load distribution is uniform and the service life of the camshaft can be extended.
Description
Technical field
The utility model relates to the camshaft for motorcycle engine structure, is specifically related to a kind of camshaft for motorcycle engine assembly that can improve working life.
Background technique
Existing camshaft for motorcycle engine assembly is made up of camshaft body, rotating speed worm gear, chain pulley seat, timing driven sprocket, left sliding shaft sleeve and right sliding shaft sleeve, because what adopt is the sliding friction mode, friction factor is bigger, under engine oil pressure fluctuation or oil pressure operating mode on the low side in short-term, axle sleeve is because of insufficient lubrication, cause under the spike load wearing and tearing and lost efficacy, influence motor working life, the good condition of axle sleeve work is the stable and cleanliness of lubricating oil height of oil pressure.
Summary of the invention
The purpose of this utility model is to provide a kind of camshaft for motorcycle engine assembly that improves structure at the deficiency of prior art existence, changes the sliding friction mode of existing structure, to reduce friction factor, improves the working life of camshaft.
The technical solution of the utility model is as follows:
This camshaft for motorcycle engine assembly has kept the mounting structure of camshaft body, rotating speed worm gear, chain pulley seat and the timing driven sprocket of existing camshaft assembly, different is to have changed original sliding shaft sleeve structure into ball bearing structure, promptly on the camshaft body, the pearl bearing that rolls left is installed, and right ball bearing is installed equally in the right part of camshaft body near the chain pulley seat right side.
Further, obtain more uniform distribution in order to make load, roll left pearl bearing and right ball bearing have adopted the two row ball bearing structure.
Because the utility model has adopted above-mentioned ball bearing structure, makes camshaft have the sliding friction mode to become the rolling friction mode, friction factor diminishes, and motor overcomes frictional loss to be reduced, and the thermal efficiency effectively improves.And ball bearing requires comparatively broad to lubricated condition (pressure fluctuation, cleanliness of lubricating oil), more can adapt to the operating mode of ultimate load in short-term under the different Environmental Conditions.Simultaneously, owing to adopted the two row ball bearing structure, under the equivalent locations space, bearing is the carrying of biserial multiple spot, and load distribution is even, can improve the working life of camshaft.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
Referring to Fig. 1, this camshaft for motorcycle engine assembly mainly is made up of camshaft body 6, rotating speed worm gear 1, chain pulley seat 3, timing driven sprocket 2, roll left pearl bearing 5 and right ball bearing 8.Wherein, rotating speed worm gear 1 is fixedly connected on camshaft body 6 left ends, chain pulley seat 3 is fixed on the camshaft body 6, chain pulley seat 3 is by bolt 4 fixedly connected timing driven sprockets 2, on camshaft body 6, the pearl bearing 5 that rolls left is installed near chain pulley seat 3 right sides, and right ball bearing 8 is installed in the right part of camshaft body 6, roll left pearl bearing 5 and right ball bearing 8 adopt the two row ball bearing structures, between two row bearings pad 7 are set.
Claims (2)
1, camshaft for motorcycle engine assembly, has camshaft body (6), be fixedly connected on the rotating speed worm gear (1) of camshaft body (6) left end, be fixed on the chain pulley seat (3) on the camshaft body (6), and be fixedly connected on timing driven sprocket (2) on the chain pulley seat (3) by bolt (4), it is characterized in that: go up near chain pulley seat (3) right side at camshaft body (6) the pearl bearing (5) that rolls left is installed, and right ball bearing (8) is installed equally in the right part of camshaft body (6).
2, camshaft for motorcycle engine assembly according to claim 1, its feature in: described pearl bearing (5) and the right ball bearing (8) of rolling left adopts the two row ball bearing structure, and pad (7) is set between two row bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009458 CN2797642Y (en) | 2005-06-09 | 2005-06-09 | Camshaft assembly for motor-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520009458 CN2797642Y (en) | 2005-06-09 | 2005-06-09 | Camshaft assembly for motor-cycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797642Y true CN2797642Y (en) | 2006-07-19 |
Family
ID=36868882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520009458 Expired - Fee Related CN2797642Y (en) | 2005-06-09 | 2005-06-09 | Camshaft assembly for motor-cycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797642Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654268A (en) * | 2017-11-15 | 2018-02-02 | 南京世界村汽车动力有限公司 | A kind of structure of engine cam |
| CN107956526A (en) * | 2016-10-14 | 2018-04-24 | 上海尤顺汽车部件有限公司 | The manufacture method of camshaft and camshaft, pipe fitting and cam |
-
2005
- 2005-06-09 CN CN 200520009458 patent/CN2797642Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956526A (en) * | 2016-10-14 | 2018-04-24 | 上海尤顺汽车部件有限公司 | The manufacture method of camshaft and camshaft, pipe fitting and cam |
| CN107654268A (en) * | 2017-11-15 | 2018-02-02 | 南京世界村汽车动力有限公司 | A kind of structure of engine cam |
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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: 20060719 Termination date: 20110609 |