CN2474726Y - Motorcycle separated cam shaft - Google Patents
Motorcycle separated cam shaft Download PDFInfo
- Publication number
- CN2474726Y CN2474726Y CN 01206136 CN01206136U CN2474726Y CN 2474726 Y CN2474726 Y CN 2474726Y CN 01206136 CN01206136 CN 01206136 CN 01206136 U CN01206136 U CN 01206136U CN 2474726 Y CN2474726 Y CN 2474726Y
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- camshaft
- cam shaft
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- Expired - Fee Related
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Abstract
The utility model relates to a motorcycle split cam shaft which is structurally characterized in that one end of the center of a cam shaft 2 is drilled with a lubricating hole 6, the lubricating hole 6 stops at a timing sprocket wheel 3, and the lubricating hole 6 is communicated with outside through small holes which are arranged on the shaft wall. The other end of the cam shaft 2 is drilled with a mounting hole 7, an output gear 1 is tightly pressed on the mounting hole 7, and a sliding shaft sleeve 4 sleeved on the cam shaft 2 is arranged on one side of the timing sprocket wheel 3 to be located by a stop binding ring 5. The utility model is easy to process, low in cost, safe and reliable in operation, and convenient for maintenance and alternation with good lubricating effect. The utility model is capable of avoiding ablation of the friction surface of a swinging arm when in high-speed rotation.
Description
The utility model relates to a kind of transmission device of motorcycle, especially the split type camshaft of motorcycle.
Camshaft in the motorcycle engine is divided into two big classes substantially at present:
1. use ball bearing, such camshaft is because there is play in ball bearing, and when causing starting motor-driven commentaries on classics, the cylinder head noise is big.Between the link press span of ball bearing bigger space is arranged simultaneously, camshaft is a solid shaft, can only adopt splash lubrication, when will advancing (row) valve, camshaft pushes up following time, because the high speed rotating of camshaft, oil mass at the rocking arm attrition surface is very few, and is lubricated insufficient, and this also is one of reason of rocking arm quilt ablation.
2. directly camshaft and cylinder head are formed bearing and bearing support; Rotating speed output gear and camshaft are an integral body.This camshaft processing technology and heat treatment requirements are higher.Manufacturing technology level according to present China motorcycle is that certain degree of difficulty is arranged.Simultaneously, because camshaft runs up, bearing or carrier wear are more serious.If exceed permission range, cylinder block integral body will be scrapped.Manufacturing and maintenance expenses are higher like this, are unfavorable for the popularization and the utilization of motor.
The purpose of this utility model provides the split type camshaft of a kind of motorcycle, by changing Motorcycle Cam axle construction, solves lubricated insufficient that existing camshaft exists, and difficulty of processing is big, problems such as cost height.
Concrete scheme of the present utility model is: comprise output gear, camshaft, timing sprocket, it is characterized in that: one at camshaft center is drilled with lubrication hole, and this lubrication hole ends to the timing sprocket place, and this lubrication hole communicates with the external world by the aperture on the axial wall; Other end at camshaft is drilled with mounting hole, and output gear is pressed on the mounting hole; Be set with sliding shaft sleeve on camshaft, it is positioned at a side of timing sprocket by the stop loop mapping.
Adopt the such scheme easy processing, cost is low, and it is safe and reliable to turn round, and be convenient to maintenance and replace, high lubricating effect, the rocking arm attrition surface is ablated in the time of can avoiding high speed rotating.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is overall structure figure of the present utility model;
Fig. 2 is sliding shaft sleeve 4 inwall unfolded drawings among Fig. 1.
As can be seen from Figure 1, the utility model mainly is made up of output gear 1, camshaft 2, timing sprocket 3, sliding shaft sleeve 4, stop snap ring 5.Structure characteristic of the present utility model is: one at camshaft 2 centers are drilled with lubrication hole 6, and this lubrication hole 6 ends to timing sprocket 3 places, and this lubrication hole 6 communicates with the external world by the aperture on the axial wall; Be drilled with mounting hole 7 in the other end of camshaft 2, output gear 1 is pressed on this mounting hole 7; On camshaft 2, be set with sliding shaft sleeve 4; It is positioned at a side of timing sprocket 3 by stop snap ring 5 location.Have " X " shape oil groove on the inwall of sliding shaft sleeve 4.
The bearing that the utility model adopts sliding shaft sleeve 4 to substitute in original technology not only alleviated difficulty of processing, and replaceable sliding shaft sleeve prolongs the working life of camshaft.
As shown in Figure 2: drive " X " shape oil groove on the inwall of sliding shaft sleeve 4, it helps good lubrication.
The utility model can not only be realized lubricating by force, and can avoid motor rocking arm attrition surface when high speed rotating ablated at camshaft center drill lubrication hole 6.
The utility model separates output gear 1 and camshaft 2, (being about to the rotating speed output gear separates with camshaft to adopt split type camshaft, carry out processing respectively, by interference fit output gear is pressed in the camshaft center hole again), when having defective, can carry out exchange like this because of certain reason camshaft or rotating speed output gear.
Claims (2)
1. split type camshaft of motorcycle, comprise output gear (1), camshaft (2), timing sprocket (3), it is characterized in that: one at camshaft (2) center is drilled with lubrication hole (6), this lubrication hole (6) to timing sprocket (3) is located to end, and this lubrication hole (6) communicates with the external world by the aperture on the axial wall; Be drilled with mounting hole (7) in the other end of camshaft (2), output gear (1) is pressed on the mounting hole (7); Be set with sliding shaft sleeve (4) on camshaft (2), it is positioned at a side of timing sprocket (3) and is located by stop snap ring (5).
2. the split type camshaft of motorcycle according to claim 1 is characterized in that: have " X " shape oil groove on the inwall of sliding shaft sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206136 CN2474726Y (en) | 2001-04-30 | 2001-04-30 | Motorcycle separated cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206136 CN2474726Y (en) | 2001-04-30 | 2001-04-30 | Motorcycle separated cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2474726Y true CN2474726Y (en) | 2002-01-30 |
Family
ID=33626820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206136 Expired - Fee Related CN2474726Y (en) | 2001-04-30 | 2001-04-30 | Motorcycle separated cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2474726Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644492A (en) * | 2012-05-12 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Novel combination type engine camshaft |
| 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 |
-
2001
- 2001-04-30 CN CN 01206136 patent/CN2474726Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644492A (en) * | 2012-05-12 | 2012-08-22 | 中国兵器工业集团第七0研究所 | Novel combination type engine camshaft |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING LIFAN INDUSTRY ( GROUP ) CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN-HONGDA INDUSTRY(GROUP) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Chongqing Lifan Industrial (Group) Co., Ltd. Patentee before: Lifanhongda Industry (Group) Co., Ltd., Chongqing |
|
| C56 | Change in the name or address of the patentee |
Owner name: LIFAN INDUSTRIAL (GROUP) CO. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN INDUSTRY ( GROUP ) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400031 Patentee after: Lifan Industrial(Group) Co., Ltd. Address before: Chongqing city Shapingba District zhangjiewan Bridge No. 60, zip code: 400031 Patentee before: Chongqing Lifan Industrial (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020130 |